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| The interaction of two coplanar cracks in a transversely isotropic half-space |
| Received:March 02, 2011 Revised:August 31, 2011 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20124004 |
| KeyWord:rectangular crack coplanar cracks interaction DBEM transversely isotropic material half-space |
| Author | Institution |
| 王炳军 |
山东科技大学 土木建筑学院, 山东省土木工程防灾减灾重点实验室, 青岛 |
| 肖洪天 |
山东科技大学 土木建筑学院, 山东省土木工程防灾减灾重点实验室, 青岛 |
| 岳中琦 |
香港大学 土木工程系, 香港 |
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| Abstract: |
| By using the dual boundary element method (DBEM),the interaction between two coplanar cracks in a transversely isotropic half space was analyzed under a normal or tangential uniform traction.According to the SIFs calculated by the present method,the influence of free surface on the SIFs was examined firstly.It can be concluded that the free surface exerts an obvious influence on the SIFs of this type of crack subjected to a normal uniform traction.In order to quantitatively describe the influence of the interaction between cracks on the SIFs,the interaction factor was introduced.The variations of the interaction factor were investigated with the crack spacing,the side ratio and the distance from free surface.Results show that the crack spacing and side ratio have a significant effect on the interaction factor and the free surface has a little influence on the interaction factor. |
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