| 受纯扭正交异性双材料的界面裂纹尖端场 |
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| 引用本文： | 陈蓓蓓,李俊林.受纯扭正交异性双材料的界面裂纹尖端场[J].太原科技大学学报,2011,32(1):55-59. |
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| 作者姓名： | 陈蓓蓓 李俊林 |
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| 作者单位： | 太原科技大学应用科学学院,太原,030024 |
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| 基金项目： | 山西省自然科学基金(2007011008) |
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| 摘 要： | 通过构造特殊的挠度函数,利用复合材料断裂复变方法,对正交异性双材料在受纯扭曲载荷作用下的界面裂纹尖端进行了探讨。在特征方程组的判别式都小于零时,通过求解两个八元齐次线性方程组,推出了含两个实奇异指数的应力函数,并得到了界面裂纹尖端附近的弯矩、扭矩的计算公式。
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| 关 键 词： | 正交异性 双材料 弯矩 扭矩 界面裂纹 |
The Crack Tips Field of Interfacial Cracks between Dissimilar Orthotropic Composite Materials under Pure Twisting |
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| CHEN Bei-bei,LI Jun-lin.The Crack Tips Field of Interfacial Cracks between Dissimilar Orthotropic Composite Materials under Pure Twisting[J].Journal of Taiyuan University of Science and Technology,2011,32(1):55-59. |
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| Authors: | CHEN Bei-bei LI Jun-lin |
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| Affiliation: | CHEN Bei-bei,LI Jun-lin(School of Applied Science,Taiyuan University of Science and Technology,Taiyuan 030024,China) |
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| Abstract: | By using complex function method of material fracture,a special function in middle plane deflection was constructed.The tip field of interface crack between orthotropic composite plates under pure twisting is analyzed.When all the discriminations of secular equations are less than zero,a class of generalized bi-harmonic equations is solved to put forward the stress function which contains two real singular indexes,and the formulae for bending moment and torque near the crack tip are derived. |
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| Keywords: | orthotropic bi-material bending moment torque interface crack |
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