Stress analysis on unidirectional composites with surface notch by the variational principle
作者： J.H. Zhao , F.S. Ji
DOI: 10.1016/0013-7944(90)90271-H
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摘要: Abstract A variational theorem, the principle of minimum potential energy (PMPE), in multilayer unidirectional composites is presented. It demonstrated that this theorem equal to corresponding shear-lag equations. By distributions stress and displacement, concentration factors for with a surface notch, are approximately computed. The initiations delamination debonding analysed.
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