Chinese Lantern-Type Stability Loss of Circular Piezoelectric Cylinder under Unidirectional Pressure

Yeşil Ü., Aylıkcı F., Yahnioğlu N.

INTERNATIONAL APPLIED MECHANICS, cilt.61, sa.3, ss.403-414, 2025 (ESCI, Scopus)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 61 Sayı: 3
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1007/s10778-025-01363-4
  • Dergi Adı: INTERNATIONAL APPLIED MECHANICS
  • Derginin Tarandığı İndeksler: Applied Science & Technology Source, Scopus, Aerospace Database, Emerging Sources Citation Index (ESCI), Academic Search Premier, Communication Abstracts, Compendex, Computer & Applied Sciences, INSPEC, Metadex, zbMATH, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.403-414
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

TheproblemofChineselantern-typestability loss is studied for a circular cylinder made of piezoelectric (PZT) material subjected to uniformly distributed axial external pressure. Mathematical model is made within the frameworkoftheexactthree-dimensionalequationsofthenonlinearelectro-elasticity theory. The“infinitesimal imperfection criterion” is used todeterminethecritical parameters.Accordingtothis criterion, the force that causes the amplitudes of the initial imperfection curves of the cylinder to increase indefinitely is accepted as the critical force. The solution of this problem is reduced to the solutions of the series boundary value problems. The critical parameters sought are determined by solving only the first two boundary problems (namely, the zeroth and the first approximations). The solution for the zeroth approximation is determined analytically. The first approximation is obtained numerically by using the finite element method. The effects of various geometric and material parameters as well as a coupling between electrical and mechanical fields on the stability loss of PZT cylinder are investigated.