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| Finite element solution of the interaction factors between coplanar surface cracks under tension loading |
| Received:September 09, 2008 |
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| DOI：10.7511/jslx20103033 |
| KeyWord:finite element method stress intensity factors surface cracks interaction factor |
| Author | Institution |
| 徐建刚 |
西北工业大学 力学与土木建筑学院,西安 |
| 任克亮 |
宁夏大学 物理电气信息学院,银川 |
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| Abstract: |
| In order to quantitatively describe the rules affecting adjacent cracks, a rectangular plate of finite thickness under remote tensile load with two coplanar semi-elliptical surface cracks of different geometric dimensions in close vicinity is used as a model, and a parametric finite element method along with the nodal forces method and circulatory iterative algorithm are used to calculate the interaction factors .The result provides a theoretical reference to analyze the remaining stress and fatigue span of the structure with multiple surface cracks in three dimensions. |