| 复合材料承受剪切时双裂纹周围的应力强度因子 |
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| 引用本文： | 钱仁根 Itou,S.复合材料承受剪切时双裂纹周围的应力强度因子[J].固体力学学报,1993,14(4):315-322. |
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| 作者姓名： | 钱仁根 Itou S |
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| 作者单位： | 北京科技大学，日本神奈川大学 北京 100083 |
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| 摘 要： | 本文研究了由各向同性和各向异性半无限接合而成的复合材料中的应力强度因子问题，在复合材料的接合面附近处具有与接合面平行且共线的两个Ｇｒｉｆｆｉｔｈ裂纹，裂纹面上作用有剪应力，本文利用付利叶变换将混合边值问题归毕为求解奇异积分方程问题，为求解这些方程，将裂纹面上，下的位移差展成级数，并满足理解纹面外侧边界条件，级数中的待定系数利用裂纹面内的边界条件和施密特方法求得，本文对硼纤维塑料和铝板接合的复合材料
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| 关 键 词： | 断裂力学 复合材料 裂纹 应力强度 |
THE STRESS INTENSITY FACTORS NEAR THE TIPS OF TWO COLLINEAR CRACKS IN COMPOSITE UNDER IN-PLANE SHEAR |
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| Qian Rengen.THE STRESS INTENSITY FACTORS NEAR THE TIPS OF TWO COLLINEAR CRACKS IN COMPOSITE UNDER IN-PLANE SHEAR[J].Acta Mechnica Solida Sinica,1993,14(4):315-322. |
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| Authors: | Qian Rengen |
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| Abstract: | In this paper,the stress intensity factors for two collinear cracks in a bonded composite composed ofan infinite isotropic half-plane and an infinite anisotropic material are calculated.The cracks are assumedto be paralell to the interface,and the crack surfaces are loaded by uniform shear stresses.By using Fouriertransform,the mixed boundary value problem is reduced to solve a set of singular integral equations,which is solved through expanding the crack surface displacements into triangular series and determiningthe unknown coefficients in the series by using the Schmidt method.The stress intensity factors for thecracks in the boron-fibre plastics and aluminium joined composite and in carbon-fibre reinforced plasticwere calculated numerically. |
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| Keywords: | linear elastic fracture mechanics composite materials collinear cracks isotropic infinite half-plane anisotropie infinite half-plane |
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