ELASTOPLASTIC FAILURE ANALYSIS OF COMPOSITE BOLTED JOINTS

被引:35
作者
TSUJIMOTO, Y [1 ]
WILSON, D [1 ]
机构
[1] UNIV DELAWARE,CTR COMPOSITE MAT,NEWARK,DE 19711
关键词
ELASTOPLASTICITY - GRAPHITE - JOINTS - Structural Analysis - MATHEMATICAL TECHNIQUES - Finite Element Method;
D O I
10.1177/002199838602000302
中图分类号
TB33 [复合材料];
学科分类号
摘要
An elasto-plastic finite element analysis of pin loaded joints in laminated composites has been investigated and comparisons made with both existing 2-D linear elastic plane stress analytical solutions and experimental results for a graphite/epoxy laminate. The finite element analysis included nonlinear material behavior after initial failure by assuming an elastic-perfectly plastic bimodular material model. Laminated plate theory was used to obtain lamina stresses and the Hill yield criterion applied in each layer to create a ply-by-ply failure analysis. The effect of including friction forces along the fastener hole interface on the stress distribution around the hole was also studied. Based upon the results, failure criteria are proposed for each of the basic failure modes, bearing, shearout and net-tension.
引用
收藏
页码:236 / 252
页数:17
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