Fatigue damage growth in carbon fabric reinforced epoxy composite has been studied using acoustic emissions. Acoustic emission characteristics of fiber breaks, matrix cracking, and delamination have been identified on the basis of event duration and rise time. It is observed that neither the number of damage events causing acoustic emission nor the energy associated with them correlates with the damage indicated by the reduction in fatigue modulus. A sudden increase ...
Large deflection bending analysis of antisymmetric rectangular cross- ply plates based on Von-Karman plate theory is investigated in this paper, with one-term approximation for the in-plane and transverse displacements, under sinusoidal loading. The presence of bending-stretching coupling in such plates results in an additional square nonlinear term which makes the solution (for example, displacements) load direction dependent, unlike isotropic, orthotropic, symmetric, square antisymmetric cross-ply and symmetric and antisymmetric angle- ply ...
This paper deals with the study of minimum weight design of laminated composite plates subjected to inplane and transverse loading. Angle ply laminates with orthotropic layers and antisymmetric plies are considered. Thickness of plies and the corresponding fiber orientations are treated as design variables. Numerical results were obtained for different aspect ratios and biaxial inplane loadings. The advent of high modulus and high strength fiber reinforced composites, such as graphite/epoxy ...
Reports by Author
