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插值矩阵法分析正交各向异性板切口应力奇异性

葛仁余 程长征 杨智勇 牛忠荣

葛仁余, 程长征, 杨智勇, 牛忠荣. 插值矩阵法分析正交各向异性板切口应力奇异性[J]. 应用数学和力学, 2014, 35(4): 459-470. doi: 10.3879/j.issn.1000-0887.2014.04.011
引用本文: 葛仁余, 程长征, 杨智勇, 牛忠荣. 插值矩阵法分析正交各向异性板切口应力奇异性[J]. 应用数学和力学, 2014, 35(4): 459-470. doi: 10.3879/j.issn.1000-0887.2014.04.011
GE Ren-yu, CHENG Chang-zheng, YANG Zhi-yong, NIU Zhong-rong. Singularity Analysis for Notches in Orthotropic Composite Plates With the Interpolating Matrix Method[J]. Applied Mathematics and Mechanics, 2014, 35(4): 459-470. doi: 10.3879/j.issn.1000-0887.2014.04.011
Citation: GE Ren-yu, CHENG Chang-zheng, YANG Zhi-yong, NIU Zhong-rong. Singularity Analysis for Notches in Orthotropic Composite Plates With the Interpolating Matrix Method[J]. Applied Mathematics and Mechanics, 2014, 35(4): 459-470. doi: 10.3879/j.issn.1000-0887.2014.04.011

插值矩阵法分析正交各向异性板切口应力奇异性

doi: 10.3879/j.issn.1000-0887.2014.04.011
基金项目: 国家自然科学基金(11272111;11372049)
详细信息
    作者简介:

    葛仁余(1969—),男,合肥人,博士(通讯作者. E-mail: gerenyu@sina.com).

  • 中图分类号: O343.4

Singularity Analysis for Notches in Orthotropic Composite Plates With the Interpolating Matrix Method

Funds: The National Natural Science Foundation of China(11272111;11372049)
  • 摘要: 基于切口尖端附近区域位移场渐近展开,提出了分析正交各向异性复合材料板切口奇异性的新方法.将位移场的渐近展开式的典型项代入弹性板的基本方程,得到关于正交各向异性板切口奇异性指数的一组非线性常微分方程的特征值问题;再采用变量代换法,将非线性特征问题转化为线性特征问题,用插值矩阵法求解获得的正交各向异性板切口若干阶应力奇异性指数和相应特征函数.该法可由相应的特征角函数对板切口的平面应力和反平面奇异特征值加以区分,并将计算结果与现有结果对照,表明了该文方法的有效性.
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出版历程
  • 收稿日期:  2013-08-08
  • 修回日期:  2013-09-24
  • 刊出日期:  2014-04-15

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