Elastic-plastic stress analysis of thermoplastic matrix laminated composite beams

Çallioǧlu H., Köksal N. S., Ataberk N., KAYNAK İ.

Mathematical and Computational Applications, cilt.9, sa.1, ss.49-64, 2004 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 9 Sayı: 1
  • Basım Tarihi: 2004
  • Dergi Adı: Mathematical and Computational Applications
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.49-64
  • Anahtar Kelimeler: Elastic-plastic stres analysis, Laminated composite beam, Small plastic deformation
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

This study deals with an elastic-plastic behavior of woven steel fibers reinforced thermoplastic matrix laminated composite beam subjected to a bending moment. The beam consists of symmetric four orthotropic layers and its material is assumed to be strain hardening. The Tsai-Hill theory is used as a yield criterion in the solution. The Bernoulli-Euler hypotheses are utilized for small plastic deformations. The beam lay-up sequences are chosen as [0°]4, [15°/-15°]s, [30°/-30°] s and [45°/45°]s. The bending moment values that begin plastic flow at the upper and lower surfaces of the beam are carried out for various stacking sequences. The variations of the elastic, elastic-plastic and residual stress components versus increasing plastic region spread are given in tables and figures. The transverse displacement is obtained at the free end, numerically.