Fiber buckling in a viscoelastic matrix

Akbarov S., Kosker R.

MECHANICS OF COMPOSITE MATERIALS, cilt.37, sa.4, ss.299-306, 2001 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 37 Sayı: 4
  • Basım Tarihi: 2001
  • Doi Numarası: 10.1023/a:1012388602610
  • Dergi Adı: MECHANICS OF COMPOSITE MATERIALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.299-306
  • Anahtar Kelimeler: unidirectional composite, fiber, initial imperfection, fiber buckling, viscoelastic matrix, critical time, COMPRESSION, COMPOSITES
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

Within the framework of the three-dimensional linearized theory of stability, an approach for investigating fiber buckling in the structure of unidirectional fibrous viscoelastic composites is developed. For simplicity, a small fiber concentration is considered, and the buckling problem for a single elastic fiber in an infinite viscoelastic matrix is investigated. In this case, it is assumed that the fiber has an insignificant initial periodical imperfection, and the growth of this imperfection with time is studied. The state where this imperfection starts to grow indefinitely is taken as a fiber-buckling criterion, and the critical time is determined from this criterion.