|
| A double iterative BEM for solving 2D closed crack loaded by a moving contact elastic body |
| Revised:August 15, 2000 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20022030 |
| KeyWord:boundary element method,sub\|regional method,closed crack,moving contact |
| Pu Junping 1 Wang Yuanfeng 1 Yao Zhenhan 2 |
|
| Hits: 1446 |
| Download times: 8 |
| Abstract: |
| Using a sub\|region boundary element method, the two\|dimensional closed crack problems loaded by a moving contact elastic body are calculated. Since the extent and nature of the contact interface for two elastic bodies and the crack are all not known in advance, a double iterative contact algorithm is presented. The singular quarter\|point boundary elements on each side of the crack tips are used to guarantee the singularity of displacement and stress field. The BEM program for solution of closed crack problem is developed, some numerical examples are presented, and the results of center crack cases are in good agreement with the analytical solution in classical fracture mechanics. In the condition of non\|friction, some coupling computational results of SIF for closed crack problems, which has different angles and loaded by a moving contact elastic body, is also obtained by numerical computation. |
|
|
|