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The present investigation is concerned with the prediction of localization (onset of deformation softening) and post-localization and post-“yield” equilibrium paths for moderately thick and thick cross-ply [90/0/90] imperfect plane strain rings. These paths are often unstable in the presence of modal imperfections and material nonlinearity, and are considered to “bifurcate” from the primary equilibrium...
A fully nonlinear finite elements analysis for prediction of localization (onset of deformation softening) and post-localization response of a thick cross-ply [90/0/90] imperfect plane strain ring (infinitely long cylindrical shell) under applied hydrostatic pressure is presented. The present investigation is concerned with the prediction of post-“yield” and post-localization equilibrium paths for...
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