| 考虑Reissner效应的功能梯度柱壳裂纹高阶渐近场 |
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| 引用本文： | 戴耀,张磊,种肖,陈红迁.考虑Reissner效应的功能梯度柱壳裂纹高阶渐近场[J].装甲兵工程学院学报,2012(5):104-106,110. |
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| 作者姓名： | 戴耀 张磊 种肖 陈红迁 |
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| 作者单位： | 装甲兵工程学院机械工程系 |
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| 基金项目： | 国家自然科学基金资助项目(11172332) |
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| 摘 要： | 针对考虑Reissner效应的功能梯度柱壳裂纹问题，通过分离变量和级数展开法构造广义位移函数，求得了裂纹尖端高阶渐近场。结果表明：该解类似于Williams解，为此类问题的特征函数，能够描述此类材料各种含裂纹结构的整个应力场和位移场；材料非均匀性对高阶项有显著影响。
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| 关 键 词： | 功能梯度材料 Reissner效应 高阶渐近场 柱壳 |
Higher Order Asymptotic Field of FGM Cylindrical Shell Cracks with Reissner Effect |
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| DAI Yao,ZHANG Lei,CHONG Xiao,CHEN Hong-qian.Higher Order Asymptotic Field of FGM Cylindrical Shell Cracks with Reissner Effect[J].Journal of Armored Force Engineering Institute,2012(5):104-106,110. |
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| Authors: | DAI Yao ZHANG Lei CHONG Xiao CHEN Hong-qian |
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| Institution: | (Department of Mechanical Engineering,Academy of Armored Force Engineering,Beijing 100072,China) |
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| Abstract: | Considering Reissner effect for FGM cylindrical shell crack problem, the generalized displace- ment function is constructed by separating variable method and asymptotic series expansion, and the crack tip higher order asymptotic fields are obtained. Results show that the solution is similar to Williams＇ solution, it is the characteristic-function of this kind of problems and can be used to describe the whole stress and displacement fields of any cracked structure of the materials. Moreover, the non-homogeneity has a great effect on the higher order terms of displacement fields. |
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| Keywords: | FGM Reissner effect high order asymptotic field cylindrical shell |
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