Authors: Jayashree Sengupta Arghya Ghosh Dipankar Chakravorty
Publish Date: 2015/03/10
Volume: 15, Issue: 3, Pages: 390-400
Abstract
A progressive failure analysis of laminated composite cylindrical roofs under transverse uniformly distributed static loadings has been carried out in the present paper using the finite element method In the finite element analysis an eightnoded isoparametric shell elements are taken up The firstply failure load and the ultimate ply failure load are evaluated and compared using different stressbased failure criteria The effect of orientation of fibers in a lamina stacking sequence and varying boundary conditions on the strength of the laminate is carried out Factors of safety and load factors are suggested based on the values of first and ultimate ply failure loads The damage progression using the failure criterion corresponding to the firstply failure load has been shown The areas of damage are correlated with deflection values through explicit equations so as to get an idea about the damage extents without going into elaborate testing The results are interpreted from practical engineering standpoint to extract meaningful conclusions
Keywords: