Compound Bifurcations in the Buckling of a Delaminated Composite Strut |
| |
Authors: | J E Wright |
| |
Institution: | (1) Department of Mechanical Engineering, University of Bath, Bath, BA2 7AY, U.K. |
| |
Abstract: | An analysis of the buckling and post-buckling of a delaminated composite strut is presented using a simple 4 degree of freedom
nonlinear Rayleigh–Ritz formulation. Bifurcation analysis indicates that instability occurs in general at an asymmetric point
of bifurcation. Depending on the depth of delamination both thin-film and overall buckling can occur in the post-buckling
range, the transition being seen at a point of secondary bifurcation. For certain combinations of parameters this becomes
a stellar bifurcation, associated with a double eigenvalue, where there are three possible subsequent routes for the post-buckling.
The method used is fast and reliable and can be readily extended to modelling a composite with several layers. |
| |
Keywords: | bifurcation buckling composite delamination laminate post-buckling |
本文献已被 SpringerLink 等数据库收录! |
|