Yayınlar & Eserler

Yayın Ağı

SCI, SSCI ve AHCI İndekslerine Giren Dergilerde Yayınlanan Makaleler

Free vibration of simply supported piezoelectric plates containing a cylindrical cavity

Yesil U. B., Yahnioglu N.
ARCHIVE OF APPLIED MECHANICS , cilt.92, sa.9, ss.2665-2678, 2022 (SCI-Expanded) identifier identifier

The Influence of Imperfect Contact Conditions between Layers of a Hollow Sandwich Sphere on its Natural Frequencies

Sevdimaliyev Y. M., Akbarov S., Yahnioğlu N.
MECHANICS OF COMPOSITE MATERIALS , cilt.56, ss.541-554, 2020 (SCI-Expanded) identifier identifier

3D FEM Analysis of Buckling Delamination of a Piezoelectric Sandwich Rectangular Plate with Interface Edge Cracks

Aylıkcı F., Akbarov S., Yahnioğlu N.
MECHANICS OF COMPOSITE MATERIALS , cilt.55, sa.6, ss.797-810, 2020 (SCI-Expanded) Creative Commons License identifier identifier

ON THE NATURAL OSCILLATION OF AN INHOMOGENEOUSLY PRE-STRESSED MULTILAYERED HOLLOW SPHERE FILLED WITH A COMPRESSIBLE FLUID

Sevdimaliyev Y. M., Akbarov S., Guliyev H. H., Yahnioglu N.
APPLIED AND COMPUTATIONAL MATHEMATICS , cilt.19, sa.1, ss.132-146, 2020 (SCI-Expanded) identifier

Influence of prestress on the natural frequency of a fluid-filled FGM sphere

Akbarov S., Çilli A., Yahnioğlu N.
EMERGING MATERIALS RESEARCH , cilt.8, sa.4, ss.663-667, 2019 (SCI-Expanded) identifier identifier

Buckling delamination of a PZT/Metal/PZT sandwich rectangular thick plate containing interface inner band cracks

Aylıkcı F., Akbarov S., Yahnıoglu N.
COMPOSITE STRUCTURES , cilt.202, ss.9-16, 2018 (SCI-Expanded) Creative Commons License identifier identifier

The influence of initial stresses on energy release rate and total electro-mechanical potential energy for penny-shaped interface cracks in PZT/Elastic/PZT sandwich circular plate-disc

AKBAROV S., Cafarova F., YAHNİOĞLU N.
SMART STRUCTURES AND SYSTEMS , cilt.22, sa.3, ss.259-276, 2018 (SCI-Expanded) Creative Commons License identifier identifier

The Discrete-Analytical Solution Method for Investigation Dynamics of the Sphere with Inhomogeneous Initial Stresses

AKBAROV S., Guliyev H. H., Sevdimaliyev Y. M., YAHNİOĞLU N.
CMC-COMPUTERS MATERIALS & CONTINUA , cilt.55, sa.2, ss.359-380, 2018 (SCI-Expanded) Creative Commons License identifier identifier

Three-dimensional analysis of the natural vibration of the three-layered hollow sphere with middle layer made of FGM

AKBAROV S., GULIYEV H. H., YAHNİOĞLU N.
Structural Engineering and Mechanics , cilt.61, sa.5, ss.563-576, 2017 (SCI-Expanded) Creative Commons License identifier identifier

Buckling delamination of the PZT/Metal/PZT sandwich circular plate-disc with penny-shaped interface cracks

Cafarova F. I., AKBAROV S., YAHNİOĞLU N.
Smart Structures and Systems , cilt.19, sa.2, ss.163-179, 2017 (SCI-Expanded) identifier identifier

On the total electro-mechanical potential energy and energy release rate at the interface crack tips in an initially stressed sandwich plate-strip with piezoelectric face and elastic core layers

AKBAROV S., YAHNİOĞLU N.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES , ss.119-130, 2016 (SCI-Expanded) identifier identifier

Natural vibration of the three-layered solid sphere with middle layer made of FGM: three-dimensional approach

AKBAROV S., Guliyev H. H., YAHNİOĞLU N.
STRUCTURAL ENGINEERING AND MECHANICS , cilt.57, sa.2, ss.239-263, 2016 (SCI-Expanded) identifier identifier

Predicting Epidemic Diseases using Mathematical Modelling of SIR

Ergen K., ÇİLLİ A., YAHNİOĞLU N.
ACTA PHYSICA POLONICA A , cilt.128, 2015 (SCI-Expanded) Creative Commons License Sürdürülebilir Kalkınma identifier identifier

A 3D FEM Analysis of Buckling Delamination of a Rectangular Plate with an Inner Rectangular Crack under a Biaxial Compressive Force

AKBAROV S., YAHNİOĞLU N., KARATAŞ E. E.
MECHANICS OF COMPOSITE MATERIALS , cilt.49, sa.6, ss.585-594, 2014 (SCI-Expanded) identifier identifier

Buckling Delamination of a Rectangular Viscoelastic Sandwich Plate Containing Interface Inner Cracks

Akbarov S., Yahnioğlu N., Tekin A.
JOURNAL OF ENGINEERING MECHANICS , cilt.140, sa.1, ss.134-148, 2014 (SCI-Expanded) Creative Commons License identifier identifier identifier

Buckling delamination of a rectangular sandwich plate containing inner cracks under biaxial loading

Akbarov S., Yahnioğlu N., Tekin A.
MECHANICS OF COMPOSITE MATERIALS , cilt.49, sa.5, ss.537-550, 2013 (SCI-Expanded) Creative Commons License identifier identifier

Buckling delamination of a sandwich plate-strip with piezoelectric face and elastic core layers

AKBAROV S., YAHNİOĞLU N.
APPLIED MATHEMATICAL MODELLING , cilt.37, ss.8029-8038, 2013 (SCI-Expanded) identifier identifier

A 3D FEM analysis of stress concentrations around two neighboring cylindrical holes in a prestressed rectangular composite plate under bending

AKBAROV S., YAHNİOĞLU N., YEŞİL Ü.
MECHANICS OF COMPOSITE MATERIALS , cilt.48, sa.5, ss.499-510, 2012 (SCI-Expanded) identifier identifier

3D FEM Analysis of the Buckling Delamination of a Rectangular Viscoelastic Composite Plate with an Embedded Rectangular Crack Under Two-Axial Compression

AKBAROV S., YAHNİOĞLU N., KARATAŞ E. E.
CMC-COMPUTERS MATERIALS & CONTINUA , cilt.30, sa.1, ss.1-18, 2012 (SCI-Expanded) identifier identifier

Local Buckling Delamination of a Rectangular Sandwich Plate Containing Interface Embedded Rectangular Cracks and Made From Elastic and Viscoelastic Materials

Akbarov S., YAHNİOĞLU N., Tekin A.
CMC-COMPUTERS MATERIALS & CONTINUA , cilt.29, sa.1, ss.41-74, 2012 (SCI-Expanded) identifier identifier

3D Analysis of the Forced Vibration of a Prestressed Rectangular Composite Plate With Two Neighboring Cylindrical Cavities

AKBAROV S., YAHNİOĞLU N., YEŞİL Ü.
CMC-COMPUTERS MATERIALS & CONTINUA , cilt.28, sa.2, ss.147-164, 2012 (SCI-Expanded) identifier identifier

Buckling delamination of a rectangular plate containing a rectangular crack and made from elastic and viscoelastic composite materials

AKBAROV S., YAHNİOĞLU N., KARATAŞ E. E.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES , cilt.47, ss.3426-3434, 2010 (SCI-Expanded) identifier identifier

DELAMINATION BUCKLING OF A RECTANGULAR ORTHOTROPIC COMPOSITE PLATE CONTAINING A BAND CRACK

AKBAROV S., YAHNİOĞLU N.
MECHANICS OF COMPOSITE MATERIALS , cilt.46, sa.5, ss.493-504, 2010 (SCI-Expanded) identifier identifier

FORCED VIBRATION OF AN INITIALLY STRESSED THICK RECTANGULAR PLATE MADE OF AN ORTHOTROPIC MATERIAL WITH A CYLINDRICAL HOLE

Akbarov S., Yahnioğlu N., Yeşil Ü.
MECHANICS OF COMPOSITE MATERIALS , cilt.46, ss.287-298, 2010 (SCI-Expanded) identifier identifier

3D FEM Analyses of the Buckling Delamination of a Rectangular Sandwich Plate Containing Interface Rectangular Cracks and Made from Elastic and Viscoelastic Materials

Akbarov S., YAHNİOĞLU N., Tekin A.
CMES-COMPUTER MODELING IN ENGINEERING & SCIENCES , cilt.64, sa.2, ss.147-185, 2010 (SCI-Expanded) identifier identifier

Interaction between two neighboring circular holes in a prestretched simply supported orthotropic strip under bending

Akbarov S., Yahnioğlu N., Yeşil Ü.
MECHANICS OF COMPOSITE MATERIALS , cilt.44, ss.581-590, 2008 (SCI-Expanded) identifier identifier

On the stress distribution in a prestretched simply supported strip containing two neighboring circular holes under forced vibration

YAHNİOĞLU N.
INTERNATIONAL APPLIED MECHANICS , cilt.43, sa.10, ss.1179-1183, 2007 (SCI-Expanded) identifier identifier

On the stress distribution in the pre-stretched simply supported strip containing two neighbouring circular holes under forced vibration

YAHNİOĞLU N.
INTERNATIONAL APPLIED MECHANICS , cilt.43, sa.10, ss.1179-1183, 2007 (SCI-Expanded)

On the influence of the initial tension of a strip with a rectangular hole on the stress concentration caused by additional loading

Akbarov S., Yahnioglu N., Yucel A.
JOURNAL OF STRAIN ANALYSIS FOR ENGINEERING DESIGN , cilt.39, ss.615-624, 2004 (SCI-Expanded) identifier identifier

Influence of initial stresses on stress intensity factors at crack tips in a composite

AKBAROV S., YAHNİOĞLU N., TURAN DİNCEL A.
Mechanics Of Composite Materials , cilt.40, ss.299-308, 2004 (SCI-Expanded) identifier identifier

The loss of stability analyses of an elastic and viscoelastic composite circular plate in the framework of three-dimensional linearized theory

KÜTÜĞ Z., YAHNİOĞLU N., AKBAROV S.
European Journal of Mechanics, A/Solids , cilt.22, sa.3, ss.475-488, 2003 (SCI-Expanded) identifier identifier

Stability loss analyses of the elastic and viscoelastic composite rotating thick circular plate in the framework of the three-dimensional linearized theory of stability

YAHNİOĞLU N., AKBAROV S.
International Journal of Mechanical Sciences , cilt.44, sa.6, ss.1225-1244, 2002 (SCI-Expanded) identifier identifier

On the three-dimensional stability loss problem of the viscoelastic composite plate

Akbarov S., YAHNIOGLU N., KUTUG Z.
INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE , cilt.39, sa.13, ss.1443-1457, 2001 (SCI-Expanded) identifier identifier

A method of investigation of the general theory of stability problems on structural elements fabricated from viscoelastic composite materials

Akbarov S., YAHNIOGLU N.
COMPOSITES PART B-ENGINEERING , cilt.32, sa.5, ss.473-480, 2001 (SCI-Expanded) identifier identifier

Bending of a composite material strip with curved structure in the geometrically nonlinear statement

Yahnioglu N., Selim S.
MECHANICS OF COMPOSITE MATERIALS , cilt.36, sa.6, ss.459-464, 2000 (SCI-Expanded) identifier identifier

Mechanics of composite materials with curved structures and elements of constructions (review)

Akbarov S., GUZ' A., YAHNIOGLU N.
INTERNATIONAL APPLIED MECHANICS , cilt.34, sa.11, ss.1067-1078, 1998 (SCI-Expanded) identifier identifier

Influence of local structural damage in multilayered thick plate material on the stress distribution

Akbarov S., Yahnioglu N.
INTERNATIONAL APPLIED MECHANICS , cilt.34, sa.9, ss.873-877, 1998 (SCI-Expanded) identifier identifier

On the fracture of the unidirectional composites in compression

Akbarov S., Sisman T., Yahnioglu N.
INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE , cilt.35, ss.1115-1136, 1997 (SCI-Expanded) identifier identifier

Three-dimensional analysis of stress fields in the plates fabricated from composite materials with small-scale structural curving

Yahnioglu N.
MECHANICS OF COMPOSITE MATERIALS , cilt.33, sa.3, ss.239-245, 1997 (SCI-Expanded) identifier identifier

Stress distribution in a strip fabricated from a composite material with small-scale curved structure

Akbarov S., YAHNIOGLU N.
INTERNATIONAL APPLIED MECHANICS , cilt.32, sa.9, ss.684-690, 1996 (SCI-Expanded) identifier identifier

Diğer Dergilerde Yayınlanan Makaleler

PİEZOELEKTRİK SANDVİÇ DİKDÖRTGEN KALIN PLAĞIN DELAMİNASYON BURKULMA MODUNA ÇEŞİTLİ GEOMETRİK VE MALZEME PARAMETRELERİNİN ETKİSİ

AYLIKCI F., YAHNİOĞLU N.
Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi , cilt.8, sa.3, ss.109-120, 2019 (Hakemli Dergi) Creative Commons License

PİEZOELEKTRİK PRİZMATİK DOLGU İÇEREN DİKDÖRTGEN KALIN PLAĞIN FEM İLE ELEKTRO-STATİK ANALİZİ

Yeşil Ü., Yahnioğlu N., Uçan Y.
Niğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi , cilt.8, sa.3, ss.69-81, 2019 (Hakemli Dergi) Creative Commons License

Own Weight Effect on Static Analysis of Pre-Stretched Plate-Strip Containing Twin Circular Inclusions Under Bending

Yeşil Ü., Yahnioğlu N.
Afyon Kocatepe Üniversitesi Fen ve Mühendislik Bilimleri Dergisi , cilt.19, sa.3, ss.902-913, 2019 (Hakemli Dergi) Sürdürülebilir Kalkınma

The effect of crack size on the buckling delamination mode (surface wrinkles) of apiezoelectric sandwich rectangular thick plate with interface edge cracks

Aylıkcı F., Yahnioğlu N.
AIP CONFERENCE PROCEEDINGS , cilt.2042, ss.1-4, 2018 (Scopus) identifier identifier

FEM ANALYSIS OF THE INFLUENCE OF THE PLATE GEOMETRY ON THE BUCKLING DELAMINATION OF A PIEZOELECTRIC SANDWICH RECTANGULAR THICK PLATE

AYLIKCI F., YAHNİOĞLU N., ELİBOL A.
SIGMA JOURNAL OF ENGINEERING AND NATURAL SCIENCES-SIGMA MUHENDISLIK VE FEN BILIMLERI DERGISI , cilt.9, sa.2, ss.193-202, 2018 (ESCI) identifier

Stress Concentration In Two Neighbouring Circular Holes In a Composite Plate

Yahnioglu N.
ANALELE, FASCICOLA MATEMATICA TOM XIII , cilt.8, sa.8, ss.261-272, 2006 (Hakemli Dergi)

Dolgu içeren şerit-levhanın eğilmesine geometrik non-lineeritenin etkisi

YAHNİOĞLU N., Agit H.
Sigma, Mühendislik ve Fen Bilimleri Dergisi , sa.2005, ss.67-78, 2005 (Hakemli Dergi)

Dikdörtgen delik içeren kompozit şerit-levhanın eğilmesinde yapıda oluşan gerilme yığılmalarına geometrik non-lineeritenin etkisi

YAHNİOĞLU N., Agit H.
Sigma, Mühendislik ve Fen Bilimleri Dergisi , sa.2005, ss.25-35, 2005 (Hakemli Dergi)

Influence of initial stresses on stress intensity factors at crack tips in a composite strip

Akbarov S., Yahnioglu N., Turan A.
Mekhanika Kompozitnykh Materialov , cilt.40, sa.4, ss.467-478, 2004 (Scopus) identifier identifier

Dikdörtgen Delik Formunda Dolgu Malzemesi İçeren Şerit-Levhada Gerilme Birikimi

Yahnioğlu N.
Y.T.Ü. Dergisi , 2002 (Hakemsiz Dergi)

The influence of the local structural damage of the multilayered thick plate material to the stress distribution

Akbarov S., Yahnioglu N.
Wuhan Daxue Xuebao (Xinxi Kexue Ban)/Geomatics and Information Science of Wuhan University , cilt.23, sa.4, ss.64-68, 1998 (Scopus) identifier

FEM analysis of the stress and displacement distribution in the cantilever pate fabricated from the composite material with small-scale periodically curved structure

YAHNİOĞLU N.
YTÜ Dergisi , ss.61-73, 1996 (Hakemli Dergi)

Hakemli Kongre / Sempozyum Bildiri Kitaplarında Yer Alan Yayınlar

THE EFFECTS OF AN IMPERFECT CONTACT CONDITIONS ON THE HIGHER NATURAL FREQUENCIES OF A SANDWICH HOLLOW SPHERE UNDER TORSIONAL VIBRATION MODE

Yahnioğlu N., Sevdimaliyev Y.
7th International Conference on CONTROL AND OPTIMIZATION WITH INDUSTRIAL APPLICATIONS (COIA-2020), Baku, Azerbaycan, 26 - 28 Ağustos 2020, cilt.1, ss.410-412 Creative Commons License

The mode of the buckling delamination of the PZT/Metal/PZT sandwich rectangular plate with interface embedded rectangular cracks

Aylıkcı F., Yahnioğlu N., Akbarov S.
7th ECCOMAS Thematic Conference on the Mechanical Response of Composites (COMPOSITES 2019), Girona, İspanya, 18 - 20 Eylül 2019, cilt.1, sa.1, ss.13-22 Creative Commons License

PİEZOELEKTRİK SANDVİÇ DİKDÖRTGEN KALIN PLAĞIN DELAMİNASYON BURKULMA MODUNA ÇEŞİTLİ GEOMETRİK VE MALZEME PARAMETRELERİNİN ETKİSİ

AYLIKCI F., YAHNİOĞLU N.
21. ULUSAL MEKANİK KONGRESİ, Niğde, Türkiye, 2 - 06 Eylül 2019, cilt.1, ss.372-381

Piezoelektrik sandviç dikdörtgen kalın plağın delaminasyon burkulma moduna çeşitli geometrik ve malzeme parametrelerinin etkisi

Aylıkcı F., Yahnioğlu N.
Ulusal Mekanik Kongresi, Niğde, Türkiye, 2 - 06 Eylül 2019, cilt.1, ss.372-381

İçi Boş Sandviç Kürenin Doğal Titreşim Frekanslarına Levhalar Arası Kusurlu Temas Koşullarının Etkisi

Sevdimaliyev Y., Akbarov S., Yahnioğlu N.
Ulusal Mekanik Kongresi, Niğde, Türkiye, 2 - 06 Eylül 2019, cilt.1, ss.342-352

Piezoelektrik Prizmatik Dolgu İçeren Dikdörtgen Kalın Plağın FEM ile Analizi

Babuscu Yesil U., Yahnioğlu N., Ucan Y.
Ulusal Mekanik Kongresi, Niğde, Türkiye, 2 - 06 Eylül 2019, cilt.1, ss.410-420

THE EFFECTS OF INHOMOGENEOUS INITIAL STRESSES ON THE OSCILLATION OF A MULTILAYERED HOLLOW SPHERE FILLED WITH A COMPRESSIBLE FLUID

Akbarov S., Yahnioğlu N., Guliyev H. H., Sedimaliyev Y.
International Conference on Applied Anaylsis and Mathematical Modeling, İstanbul, Türkiye, 10 - 13 Mart 2019, cilt.1, sa.1, ss.44 Sürdürülebilir Kalkınma

INFLUENCE OF THE INHOMOGENEOUS INITIAL STRESS ON THE NATURAL FREQUENCIES OF A FLUID-FILLED HOLLOW SPHERE MADE OF FGM

AKBAROV S., ÇİLLİ A., YAHNİOĞLU N.
5th International Conference on Computational and Experimental Science and Engineering (ICCESEN 2018), Antalya, Türkiye, 12 Ekim 2018, cilt.1, sa.1, ss.217

THE EFFECT OF CRACK SIZE ON THE BUCKLING DELAMINATION MODE (SURFACE WRINKLES) OF A PIEZOELECTRIC SANDWICH RECTANGULAR THICK PLATE WITH INTERFACE EDGE CRACKS

AYLIKCI F., YAHNİOĞLU N.
TURKISH PHYSICAL SOCIETY 34TH INTERNATIONAL PHYSICS CONGRESS, Muğla, Türkiye, 05 Eylül 2018, cilt.1, sa.1, ss.61 Creative Commons License identifier identifier

THE EFFECT OF BOUNDARY CONDITIONS ON THE CRITICAL PARAMETERS IN THE BUCKLING DELAMINATION OF PZT/Metal/PZT SANDWICH RECTANGULAR THICK PLATE

AYLIKCI F., YAHNİOĞLU N., ELİBOL A.
7th International Eurasian Conference On Mathematical Sciences And Applications (IECMSA-2018), Kiev, Ukrayna, 28 Ağustos 2018, cilt.1, ss.1 Creative Commons License

EFFECTS OF THE MATERIAL CONSTANTS ON THE TORSIONAL VIBRATION OF A HOLLOW SPHERE WITH THE INHOMOGENEOUS INITIAL STRESSES

AKBAROV S., YAHNİOĞLU N., Guliyev H. H.
7TH INTERNATIONAL EURASIAN CONFERENCE ON MATHEMATICAL SCIENCES AND APPLICATIONS KYIV - UKRAINE, Kiev, Ukrayna, 28 Ağustos 2018, cilt.1, ss.1 Creative Commons License

3D FEM analysis of a buckling delamination of a piezoelectric sandwich rectangular plate with interface edge cracks

AYLIKCI F., AKBAROV S., YAHNİOĞLU N.
4th International Conference on Mechanics of Composites, Madrid, İspanya, 09 Temmuz 2018, ss.50 Creative Commons License

FREE VIBRATION OF A FLUID-FILLED HOLLOW SPHERE WITH INHOMOGENEOUS INITIAL STRESS

AKBAROV S., YAHNİOĞLU N., Guliyev H. H.
International Conference on Innovations in Natural Science and Engineering (ICINSE 2018), Famagusta, Kıbrıs (Kktc), 03 Ocak 2018, cilt.1, sa.1, ss.3-4 Creative Commons License

Buckling delamination of a PZT/Metal/PZT sandwich rectangular thick plate with closed- circuit conditions

AYLIKCI F., YAHNİOĞLU N., AKBAROV S.
1st International Conference on Innovations in Natural Science and Engineering, Famagusta, Kıbrıs (Kktc), 03 Ocak 2018, ss.25 Creative Commons License

On one integral criterion of reliability of geoinformation

Guliyev H. H., AKBAROV S., YAHNİOĞLU N., Sevdimaliyev Y. M.
17th International Conference on Geoinformatics: Theoretical and Applied Aspects, Kyiv, Ukrayna, 14 - 17 Mayıs 2018, sa.1 Creative Commons License identifier

Natural Vibration of a Multilayered Hollow Sphere Filled with a Compressible Fluid

AKBAROV S., YAHNİOĞLU N., Guliyev H. H.
34th International Physics Congress of the Turkish-Physical-Society (TPS), Konacik, Türkiye, 5 - 09 Eylül 2018, cilt.2042 identifier identifier

ON THE DISCRETE-ANALYTICAL SOLUTION METHOD FOR INVESTIGATION DYNAMICAL PROBLEMS OF THE SPHERE WITH INHOMOGENEOUS INITIAL STRESSES

AKBAROV S., Guliyev H. H., YAHNİOĞLU N.
13th International Conference on Vibration Problems, Guwahati, Hindistan, 29 Kasım 2017, ss.1-15 Creative Commons License

HOMOJEN OLMAYAN ÖNGERİLME İÇEREN İÇİ BOŞ KÜRENİN TORSİYONEL TİTREŞİMİ

AKBAROV S., YAHNİOĞLU N., Guliyev H. H.
XX. Ulusal Mekanik Kongresi, Bursa, Türkiye, 05 Eylül 2017, ss.1-6

İKİZ DAİRESEL DOLGU İÇEREN ÖNGERİLMELİ ŞERİT-PLAĞIN EĞİLMESİNE KENDİ AĞIRLIĞININ ETKİSİ

Yeşil Ü., Yahnıoglu N.
XX. Ulusal Mekanik Kongresi, Bursa, Türkiye, 5 - 09 Eylül 2017, ss.1-10

PİEZOELEKTRİK SANDVİÇ DİKDÖRTGEN KALIN PLAĞIN DELAMİNASYON BURKULMASININ FEM İLE İNCELENMESİ

AYLIKCI F., YAHNİOĞLU N., ELİBOL A.
XX. Ulusal Mekanik Kongresi, Türkiye, 5 - 09 Eylül 2017

Buckling Delamination of a PZT/Metal/PZT sandwich rectangular thick plate containing interface inner band cracks

AYLIKCI F., AKBAROV S., YAHNİOĞLU N.
20th International Conference on Composite Structures (ICCS20), Paris, Fransa, 4 - 07 Eylül 2017

An Investigation on the Free Vibration of a Sphere with Inhomogeneous Initial Stresses

AKBAROV S., YAHNİOĞLU N., Guliyev H. H.
6th International Eurasian Conference on Mathematical Sciences and Applications (IECMSA-2017), Budapeşte, Macaristan, 15 Ağustos 2017, ss.175

3D FEM Analysis of Buckling of a Piezoelectric Rectangular Thick Plate

YAHNİOĞLU N., AYLIKCI F.
6th International Eurasian Conference on Mathematical Sciences and Applications IECMSA-2017, Budapeşte, Macaristan, 15 Ağustos 2017, ss.155

3D FEM Analysis of Buckling Delamination of a Piezoelectric Rectangular Thick Plate

YAHNİOĞLU N., AYLIKCI F.
6th International Eurasian Conference on Mathematical Sciences and Applications (IECMSA 2017), Budapest, Macaristan, 15 - 18 Ağustos 2017

Buckling delamination of the circular sandwich plate with piezoelectric face and elastic core layers under rotationally symmetric external pressure

AKBAROV S., Cafarova F. I., YAHNİOĞLU N.
Turkish Physical Society 32nd International Physics Congress, TPS 2016, Konacik-Bodrum, Türkiye, 6 - 09 Eylül 2016, cilt.1815 identifier identifier

3D analysis of the natural oscillation of the threelayered solid and hollow sphere with middle layer made of FGM

Guliyev H. H., YAHNİOĞLU N.
European Advanced Materials Congress 2016, 01 Ağustos 2016

FONKSİYONEL DERECELENDİRİLMİŞ MALZEMEDEN YAPILMIŞ İÇİ BOŞ ÜÇKATLI KÜRENİN TORSİYONEL SERBEST TİTREŞİMİNİN DİSKRİT-ANALİTİK YÖNTEMLE İNCELENMESİ

Quliyev H., Akbarov S., Yahnioğlu N.
XIX. ULUSAL MEKANİK KONGRESİ , Trabzon, Türkiye, 24 - 28 Ağustos 2015, cilt.1, sa.1, ss.826-837 Creative Commons License

Predicting Epidemic Diseases Using Mathematical Modelling of SIR

ERGEN K., ÇİLLİ A., YAHNİOĞLU N.
Internatinal Conference on Computational and Experimental Science and Engineering (ICCESEN), 25 - 29 Ekim 2014, ss.572

The total electro-mechanical potential energy at the interface crack tips in a sandwich plate-strip with piezoelectric face and elastic core layers

YAHNİOĞLU N.
Institude of Polymer Mechanics University of Latvia, 01 Haziran 2014, cilt.1, ss.192

PİEZOELEKTRİK MALZEMEDEN YAPILMIŞ SANDVİÇ PLAK ŞERİTİN DELAMİNASYON BURKULMASI

SURKHAY A., YAHNİOĞLU N.
XVIII. ULUSAL MEKANİK KONGRESİ, Türkiye, 26 - 30 Ağustos 2013, ss.31-42

Dış Katmanları Piezolektrik Orta Katmanı Elastik Olan Çekme Öngerilmeli Sandviç Şerit Plaktaki İç Çatlakların Ucunda Oluşan Enerji Salınım Oranı Ve Elektro Mekanik Potansiyel Enerji

AKBAROV S. D., YAHNİOĞLU N.
10th INTERNATIONAL FRACTURE CONFERENCE, 24 - 26 Nisan 2014

Piezoelektrik Malzemeden Yapılmış Plak Kirişin Eğilmesi Durumunda Yapıda Oluşan Gerilme Yayılımına Elektriksel Ve Mekaniksel Alanın Karşılıklı Etkisinin FEM İle İncelenmesi

YAHNİOĞLU N., DANABAŞ N. E.
18. Ulusal Mekanik Kongresi, Türkiye, 26 - 30 Ağustos 2013

Piezoelektrik Malzemeden Yapılmıs Sandviç Plak-Şeritin Delaminasyon Burkulması

YAHNİOĞLU N.
01 Ağustos 2013, cilt.1

3D FEM analysis of stress concentrations around two neigboring cylindrical holes within a prestressed rectangular composite plate under bending

SURKHAY A., YAHNİOĞLU N., YEŞİL Ü.
XVII. International Conference on Mechanics of Composite Materials, 28 Mayıs - 01 Haziran 2012

Buckling delamination of rectangular sandwich plates containing inner cracks under bi axial loading

Surkhay A., Yahnioğlu N., Tekin A.
XVII. International Conference on Mechanics of Composite Materials, Riga, Letonya, 28 Mayıs - 01 Haziran 2012

3D Analyses of buckling delamination of a rectangular plate with an inner rectangular crack under biaxial compressive force

SURKHAY A., YAHNİOĞLU N., KARATAŞ E. E.
XVII. International Conference on Mechanics of Composite Materials, 28 Mayıs - 01 Haziran 2012

Buckling delamination of a plate-strip with elastic core and piezoelectric face layers

YAHNİOĞLU N., Akbarov S. D.
International Conference on Computational&Experimental Engineering and Sciences (ICCES'12), 30 April-4 May 2012 Crete, Greece, 01 Mayıs 2012

3D Analysis of the forced vibration of a prestressed rectangular composite plate with two neighboring cylindrical cavities

SURKHAY A., YAHNİOĞLU N., YEŞİL Ü.
International Conference on Computational&Experimental Engineering and Sciences (ICCES'12), 30 Nisan - 04 Mayıs 2012

3D FEM analysis of the buckling delamination of a rectangular viscoelastic composite plate with an embedded rectangular crack under two axial compression

SURKHAY A., YAHNİOĞLU N., KARATAŞ E. E.
International Conference on Computational&Experimental Engineering and Sciences (ICCES'12), 30 Nisan - 04 Mayıs 2012

Buckling Delamination of a Sandwich Plate-Strip with Elastic Core and Piezoelectric face Layers

AKBAROV S., Yahnioglu N.
01 Nisan 2012, ss.46

Buckling delamination of a plate strip made from piezoelectric material

SURKHAY A., YAHNİOĞLU N.
9th International Fracture Conference, 19 - 21 Ekim 2011

Buckling delamination of rectangular viscoelastic sandwich plates containing inner cracks

Akbarov S., Yahnioğlu N., Tekin A.
9th International Fracture Conference, 19-21 October 2011 Yildiz Technical Uni, Istanbul, Turkey, İstanbul, Türkiye, 19 - 21 Ekim 2011, ss.45-55

İki Silindirik Boşluk İçeren Öngerilmeli Kompozit Plağın Eğilmesi Durumunda Boşluklar Civarında Oluşan Gerilme Yığılmasının FEM ile İncelenmesi

YEŞİL Ü., YAHNİOĞLU N.
XVII. Ulusal Mekanik Kongresi, Türkiye, 5 - 09 Eylül 2011

İç Çatlaklar içeren İçeren Sandviç Plağın Delaminasyon Burkulma Probleminin FEM ile İncelenmesi

Tekin A., Yahnioğlu N.
XVII. Ulusal Mekanik Kongresi, Elazığ, Türkiye, 5 - 09 Eylül 2011, ss.659-668

İç Çalak İçeren Viskoelastik Dikdörtgen Plağın Delaminasyon Burkulması

KARATAŞ E. E., YAHNİOĞLU N.
XVII. Ulusal Mekanik Kongresi, Türkiye, 5 - 09 Eylül 2011

Natural vibration of an initial stressed rectangular composite thick plate with two neighboring oval cylindrical holes

YAHNİOĞLU N., Babuscu Yesil U.
10th International Conference on Vibration Problems, 05-08 September 2011, Prague, Czech Republic, 01 Eylül 2011

Natural Vibration of an Initial Stressed Rectangular Composite Thick Plate with Two Neighboring Oval Cylindrical Holes

AKBAROV S., YAHNİOĞLU N., YEŞİL Ü.
10th Biennial International Conference on Vibration Problems (ICOVP), Prague, Çek Cumhuriyeti, 5 - 08 Eylül 2011, ss.162-167 identifier

Concentration of stress around the cylindrical hole in an initial stressed rectangular orthotropic thick plate

YAHNİOĞLU N., Yesil U. B.
ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis, ESDA2010, İstanbul, Türkiye, 12 - 14 Temmuz 2010, cilt.4, ss.123-129 identifier identifier

Buckling delamination of the rectangular orthotropic thick plate with an edge rectangular crack

Akbarov S., YAHNİOĞLU N., KARATAŞ E. E.
ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis, ESDA2010, İstanbul, Türkiye, 12 - 14 Temmuz 2010, cilt.2, ss.193-200 identifier

An analysis of buckling delamination of composite rectangular thick plates with an inner rectangular Crack

YAHNİOĞLU N., Karatas E. E.
The Tenth International Conference on Computational Structures Technology (CST2010) 14-17 September 2010 Valencia, Spain, 01 Eylül 2010

Buckling Delamination Of A Rectangular Sandwich Thick Plate With Band Cracks

SURKHAY A., YAHNİOĞLU N., KARATAŞ E. E.
ASME2010 International Mechanical Engineering Congress and Exposition, 12 - 14 Temmuz 2010 identifier

Buckling Delamination Of The Rectangular Orthotropic Thick Plate With An Edge Rectangular Crack (ESDA2010-24705)

YAHNİOĞLU N., Karatas E. E.
Asme2010 International Mechanical Engineering Congress And Exposition, July 12-14, 2010, Istanbul, Turkey, 01 Temmuz 2010

Concentration Of Stress Around The Cylindrical Hole In An Initial Stressed Rectangular Orthotropic Thick Plate (ESDA2010-24698)

YAHNİOĞLU N., Babuscu Yesil U.
ASME2010 International Mechanical Engineering Congress and Exposition, July 12-14, 2010, Istanbul, Turkey, 01 Temmuz 2010

Concentration of Stress Around The Cylindrical Hole In an Initial Stressed Rectangular Orthotropic Thick Plate

Yahnioglu N.
ASME 2010 International Mechanical Engineering Congress and Exposition, 01 Temmuz 2010

Forced Vibration Of An Initial Stressed Rectangular Thick Plate Made From Orthotropic Material With A Cylindrical Hole

SURKHAY A., YAHNİOĞLU N., YEŞİL Ü.
Sixteenth International Conference on Mechanics of Composite Materials (MCM 2010), 24 - 28 Mayıs 2010

Forced Vibration Of An Initial Stressed Rectangular Thick Plate Made From Orthotropic Material With A Cylindrical Hole

YAHNİOĞLU N., Babuscu Yesil U.
Sixteenth International Conference on Mechanics of Composite Materials (MCM 2010), May 24-28, 2010, Riga-Letonya, 01 Mayıs 2010

Forced vibration of an initial stressed rectangular composite thick plate with a cylindrical hole

YAHNİOĞLU N., Yesil U. B.
2009 ASME International Mechanical Engineering Congress and Exposition, IMECE2009, Lake Buena Vista, FL, Amerika Birleşik Devletleri, 13 - 19 Kasım 2009, cilt.15, ss.337-343 identifier

BUCKLING DELAMINATION OF A RECTANGULAR SANDWICH THICK PLATE WITH BAND CRACKS

Akbarov S., Yahnioglu N., Tekin A.
10th ASME Biennial Conference on Engineering Systems Design and Analysis, İstanbul, Türkiye, 12 - 24 Temmuz 2010, ss.243-251 identifier identifier

An analysis of buckling delamination of composite rectangular thick plates with an inner rectangular crack

AKBAROV S., YAHNİOĞLU N., KARATAŞ E. E.
10th International Conference on Computational Structures Technology, CST 2010, Valencia, İspanya, 14 - 17 Eylül 2010, cilt.93 identifier

FORCED VIBRATION OF AN INITIAL STRESSED RECTANGULAR COMPOSITE THICK PLATE WITH A CYLINDRICAL HOLE

YAHNİOĞLU N., Yesil U. B.
ASME International Mechanical Engineering Congress and Exposition, Florida, Amerika Birleşik Devletleri, 13 - 19 Kasım 2009, ss.337-343 identifier

Forced Vibration of an Initial Stressed Rectangular Composite Thick Plate With a Cylindrical Hole

YAHNİOĞLU N., Babuscu Yesil U.
01 Kasım 2009

Buckling Delamination of the Viscoelastik Rectangular Thick Plate with a Edge Rectangular Crack

YAHNİOĞLU N., Karatas E. E.
ASME 2009 International Mechanical Engineering Congress and Exposition (IMECE09), November 13-19, 2009, Lake Buena Vista, Florida, USA, 01 Kasım 2009

Silindirik Boşluk İçeren Anizotrop Kalın Plağın Doğal Titreşimine Öngerilmenin Etkisi

YAHNİOĞLU N., YEŞİL Ü.
XVI. Ulusal Mekanik Kongresi, Türkiye, 22 - 26 Haziran 2009

Silindirik Boşluk İçeren Anizotrop Kalın Plağın Doğal Titreşimine Öngerilmenin Etkisi

YAHNİOĞLU N., Babuscu Yesil U.
XVI. Ulusal Mekanik Kongresi, 22-26 Haziran 2009, Erciyes Üniversitesi, Kayseri, 01 Haziran 2009

Kenar Çatlağı İçeren Anizotrop Dikdörtgen Kalın Plağın Delaminasyonu

YAHNİOĞLU N., Karatas E. E.
XVI. Ulusal Mekanik Kongresi, 22-26 Haziran 2009, Erciyes Üniversitesi, Kayseri, 01 Haziran 2009

Öngerilmeli Şerit-Plağın Eğilmesi Durumunda İçerdiği Dairesel Dolgular Arasındaki Karşılıklı Etki

YAHNİOĞLU N., Babuscu Yesil U.
XV. Ulusal Mekanik Kongresi, 03-07 Eylül 2007, Süleyman Demirel Üniversitesi, Isparta, 01 Eylül 2008

Delamination buckling of a rectangular composite orthotropic plate containing a band crack

SURKHAY A., YAHNİOĞLU N.
Fifteenth International Conference on Mechanics of Composite Materials (MCM2008), 26 - 30 Mayıs 2008

Interraction between two neigbouring circular holes in a prestreched simply supported orthotropic strip under bending

SURKHAY A., YAHNİOĞLU N., YEŞİL Ü.
Fifteenth International Conference on Mechanics of Composite Materials (MCM2008), 26 - 30 Mayıs 2008

The delamination buckling of the elastic and viscoelastic rectangular composite plate containing a band-crack

YAHNİOĞLU N., Rzayev O.
8th International Fracture Conference, 07-09 November 2007 Yildiz Technical University-Istanbul, 01 Kasım 2007

Öngerilmeli Şerit Plağın Eğilmesi Durumunda İçerdiği Dairesel Dolgular Arasındaki Karşılıklı Etki

YAHNİOĞLU N., YEŞİL Ü.
XV. Ulusal Mekanik Kongresi, Türkiye, 3 - 07 Eylül 2007

Interaction Between Two Neighboring Circular Holes In Pre-Stretched Simply-Supported Composite Strip Under Bending

YAHNİOĞLU N., Babuscu Yesil U., Akat E.
International Joint Conference on Knowledge Management for Composite Materials, 03-06 July 2007, Dortmund, Germany, 01 Temmuz 2007

Forced vibration of the pre-stretched simply supported strip containing two neighbouring circular holes

YAHNİOĞLU N., AKBAROV S.
7th International Conference on Vibration Problems (ICOVP 2005), İstanbul, Türkiye, 5 - 09 Eylül 2005, cilt.111, ss.511-513 identifier

Forced vibration of the pre stretched simply supported strip containing two neighbouring circular holes

SURKHAY A., YAHNİOĞLU N.
The Seventh International Conference on Vibration Problems (ICOVP-2005, 5 - 09 Eylül 2005

Dairesel İki Delik İçeren Ortotrop Şerit-Levhanin Kenarlarindan Çekilmesi Durumunda Delikler Civarında Oluşan Gerilme Birikimi

YAHNİOĞLU N., Babuscu Yesil U.
XIV Ulusal Mekanik Kongresi, Antakya, 12-16 Eylül 2005, 01 Eylül 2005

Influence of Initial Stresses on Stress Intensity Factors at Crack Tips in a Composite Strip

AKBAROV S., YAHNİOĞLU N., TURAN DİNCEL A.
Thirteenth International Conference, Mechanics of Composite Materials, Letonya, 16 - 20 Mayıs 2004 identifier identifier

Influence of initial stresses on the stress intencity factor at crack tips in a composite strip

YAHNİOĞLU N., Turan A.
Thirteenth International Conference on Mechanics of Composite Materials (MCM2004), Letonya-Riga, May 16-20, 2004, 01 Mayıs 2004

On the Determination of the SIF at the Macro-Crack Tips in the Pre-stretched Anisotrop Strip

YAHNİOĞLU N., TURAN DİNCEL A.
6th International Fracture Conference, Konya, Türkiye, 10 Eylül 2003, ss.20-24

On the influence of the initial tension of the strip with rectangular hole to the stress concentration caused by additional loading

Surkhay A., Yahnioğlu N., Mermer Yücel A.
Proceedings of The 6th International Fracture Conference, Konya, Türkiye, 10 - 12 Eylül 2003, ss.3-10

Dikdörtgen dolgu malzemesi içeren öngerilmeli şeritte ilave yükten dolayı oluşan gerilme yığılmasına öngerilmenin etkisi

Yahnioğlu N., Mermer Yücel A.
XIII. Ulusal Mekanik Konferansı, Gaziantep, Türkiye, 8 - 12 Eylül 2003, ss.787-795

Çatlak İçeren Öngerilmeli Şeritte Gerilme Birikimi Şiddeti Faktörüne Öngerilmenin Etkisi

YAHNİOĞLU N., TURAN DİNCEL A.
XII. Ulusal Mekanik Kongresi, Türkiye, 8 - 12 Eylül 2003

Dikdörtgen Dolgu Malzemesi İçeren Öngerilmeli Şeritte İlave Yükten Dolayı Oluşan Gerilme Yığılmasına Öngerilmenin Etkisi

Yahnioğlu N.
8-12 Eylül, 01 Eylül 2003, ss.787-795

Çatlak içeren öngerilmeli şeritte gerilme birikimi şiddeti faktörüne öngerilmenin etkisi

YAHNİOĞLU N., Turan A.
13. Ulusal Mekanik Konferansı 8-12 Eylül 2003 Gaziantep Üniversitesi-Gaziantep, 2003, 01 Eylül 2003

On the influence of the initial tension of the strip with rectangular hole to the stress concentration

AKBAROV S., Yahnioglu N., Mermer Yucel A.
01 Eylül 2003, ss.3-10

Eğrisel yapıya sahip çokkatlı kompozit malzemeden hazırlanmış dairesel plağın zorlama titreşimindeki gerilme yayılımı

YAHNİOĞLU N.
XII. Ulusal Mekanik Kongresi, Türkiye, 10 - 14 Eylül 2001

Kare delik içeren çok katlı kompozit malzemeden oluşan şerit plaktaki gerilme dağılımı

Yahnioğlu N., Mermer A.
XII. Ulusal Mekanik Kongresi, Konya, Türkiye, 10 - 14 Eylül 2001, ss.853-859 Sürdürülebilir Kalkınma

Kare Delik İçeren Çokkatlı Kompozit Malzemeden Oluşan Şerit-Plaktaki Gerilme Dağılımı

Yahnioğlu N.
01 Eylül 2001, ss.853-859 Sürdürülebilir Kalkınma

On the unnecessity to the singular finite elements in the delamination problems

Akbarov S., Yahnioğlu N., Rzayev O.
6th International Fracture Conference, 10-12 September 2003 Selcuk University-Konya, İstanbul, Türkiye, 10 - 12 Eylül 2003, ss.1-10

Stability of viscoelastic circular plate

YAHNİOĞLU N.
ICCE/7, Seventh Annual International Conference on Composites Engineering, 2 - 08 Temmuz 2000, ss.949-950

On the delamination of the unidirectional viscoelastic composite materials

Rzayev O., YAHNİOĞLU N.
4. Ulusal Kırılma Mekaniği Konferansı, 18-20 Ekim 1999 Y.T.Ü, İstanbul, 01 Ekim 1999

The method for investigation of the general theory of stability problems of structural elements fabricated from the viscoelastic composite materials

SURKHAY A., YAHNİOĞLU N.
Sixth Annual International Conference On Composites Engineering (ICCE/6), 27 Haziran - 03 Temmuz 1999

Geometrical Non-Linear Bending Problems of The Strip Fabricated From The Multilayered Composite Material With Periodically Curved Structures

Yahnioğlu N., Selim S.
2nd Pacific-Asia Conference On Mechanical Engineering, September 9-11, 1998 Manila Philippines, Manila, Filipinler, 9 - 11 Eylül 1998, ss.1

The stability loss of the strip fabricated from the composite material with pariodically curved structure

Yahnioğlu N., Selim S.
Ninth International Symposium on Continuun Models and Discrete Systems (CMDS9 ), İstanbul, Türkiye, 29 Haziran - 03 Temmuz 1998, ss.832-835

On the finite element analysis of the influence of the local structural damage of the multilayered thich plate material to the stress distribution

SURKHAY A., YAHNİOĞLU N.
Damage and Fracture Mechanics, 8 - 10 Haziran 1998

The Stability Loss of the Strip Fabricated From the Multilayered Composite Material with Periodically Curved Structure

Yahnioğlu N.
The Ninth International Symposium on Continuum Models and Discrete Systems, 01 Haziran 1998

On the finite element analysis of the influence of the local structural damage of the multilayered thick plate material to the stress distribution

Akbarov S., Yahnioglu N.
5th International Conference on Computer Aided Assessment and Control of Localized Damage and Fracture Mechanics, Bologna, İtalya, 01 Ocak 1998, ss.187-196 identifier identifier

Homojen Olmayan Anizotrop Malzemeden Yapılmış Şerit İçin Bir Geometrik Non-Lineer Problemin İncelenmesi

Yahnioğlu N., Selim S.
X. Ulusal Mekanik Kongresi, İstanbul, Türkiye, 15 - 19 Eylül 1997, ss.443-452

Bor ve cam takviyeli kompozit malzemeden hazırlanmış şeritin zorlanmış titreşimlerine şerit malzemesi yapısındaki hasar parametrelerinin etkisi

YAHNİOĞLU N., Kutug Z.
Savunma Sanayiindeki Teknolojik Gelişmeler Sempozyumu, 5-6 Haziran 1997, Ankara, 01 Haziran 1997

Çok katlı malzemeden hazırlanmış kalın plak için malzeme hasar parametrelerinin gerilme dağılımına olan etkisinin FEM ile araştırılması

SURKHAY A., YAHNİOĞLU N.
II. Ulusal Hesaplamalı Mekanik Kongresi, Türkiye, 4 - 06 Eylül 1996 Sürdürülebilir Kalkınma

Sürekli homojen olmayan anizotrop cisimlerin elastisite teorisinin üç boyutlu sınırdeğer problemlerinin sayısal çözülmesinde sınır tabakası tipinde yaklaşım

Sisman T., YAHNİOĞLU N.
01 Eylül 1996

On the fracture of the unidirectional composites in compression

SURKHAY A., ŞİŞMAN T. T., YAHNİOĞLU N.
Third International Conference On Composites Engineering, ICCE/3, 21 - 26 Temmuz 1996

Bir ucu rijid tutturulmuş eğrisel yapıya sahip kompozit malzemeden hazırlanmış şeritin eğilmesinin FEM ile araştırılması

YAHNİOĞLU N.
01 Kasım 1995

Eğrisel yapıya sahip kompozit malzemeden hazırlanmış şeritin gerilme durumunun FEM ile araştırılması

SURKHAY A., YAHNİOĞLU N.
IX. Ulusal Mekanik Kongresi, Türkiye, 4 - 08 Eylül 1995

Metrikler

Yayın

160

Atıf (WoS)

314

H-İndeks (WoS)

10

Atıf (Scopus)

405

H-İndeks (Scopus)

12

Atıf (Scholar)

9

H-İndeks (Scholar)

2

Proje

10

Tez Danışmanlığı

9

Açık Erişim

14
BM Sürdürülebilir Kalkınma Amaçları