| 韩宇,单辉祖.正交各向异性平面断裂问题应力强度因子的边界元解法[J].计算力学学报,1991,8(4): |
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| 正交各向异性平面断裂问题应力强度因子的边界元解法 |
| Stress Intensity Factor Computations of Othotropic Plate Using Boundary Element Method |
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| DOI：10.7511/jslx19914054 |
| 中文关键词: 边界元法,奇异边界元,正交各向异性板,应力强度因子 |
| 英文关键词:boundary clement method,singular boundary clement,othotropic plates,stress intensity factor. |
| 基金项目:航空科研基金 |
| 韩宇 单辉祖 |
北京航空航天大学
(韩宇)
，北京航空航天大学(单辉祖)
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| 摘要点击次数: 1511 |
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| 中文摘要: |
| 本文研究单向复合材料或正交各向异性体平面断裂问题,构造了一个1/4节点混合参数应力奇异边界元,综合运用该元素与1/4节点等参边界元,提出了求解应力强度因子的混合边界元解法,用所述方法计算了含中心裂纹无限大与有限大正交各向异性板的应力强度因子,算例表明,本文所述方法不仅计算精度高,而且适应性强,便于工程应用。 |
| 英文摘要: |
| In this paper,the so-called quater-point traction sirgular boundary element using mixed parameters is proposed. By use of the singular boundary element and quater-point isoparametric boundary element, a method to determine the stress intensity factor is presented. The stress intensity factors of the infinite and finite orthtropic plates with central cracks are calculated. It is found that the results are very cousistant with the solutions available. |
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