Non-linear progressive failure analysis of composite aerospace structures

Günel M., KAYRAN A.

18th International Conference on Composites Materials, ICCM 2011, Jeju, Güney Kore, 21 - 26 Ağustos 2011 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: Jeju
  • Basıldığı Ülke: Güney Kore
  • Anahtar Kelimeler: Composite aerospace structures, Material property degradation, Nastran, Non-linear deformation, PCL code, Progressive failure analysis
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

The article presents a study of geometrically nonlinear progressive failure analysis of thin walled composite aerospace structures subjected to combined in-plane and out-of-plane loadings which are typically encountered in thin walled aerospace structures. Different ply and constituent based failure criteria and material property degradation schemes have been coded into a PCL code in Nastran, and progressive failure analyses of sample composite laminates with cut-outs are executed. Case studies are performed to study the effect of geometric nonlinearity on the first ply failure and progression of failure for laminated composite structures under combined in-plane and out-of-plane loadings.