Abstract
A finite deformation/finite-element analysis is performed on the necking behaviour of laminated plates consisting of two materials with different work-hardening coefficients. The plates are subjected to a prescribed uniform axial displacement at both ends. The plane strain condition is assumed and the J 2-flow theory is adopted. The results obtained are as follows: (1)For the plate with shear free ends, the load and strain at onset of necking can be predicted from the compound load-displacement curve. After necking initiates, the deformation depends on the order of lamina location. (2)For the plate with clamped ends, the deformation is influenced by the order of lamina location from the beginning of loading. (3)A slight delamination has little effect on the load-displacement curve before the onset of necking, although it has a considerable effect on the deformation after the necking initiates.
Published Version
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