| 功能梯度热压电带拼接功能梯度材料中裂纹对SH波的散射 |
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| 引用本文： | 马旭,陆万顺.功能梯度热压电带拼接功能梯度材料中裂纹对SH波的散射[J].华中师范大学学报(自然科学版),2009,43(4). |
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| 作者姓名： | 马旭 陆万顺 |
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| 作者单位： | 宁夏师范学院数学与计算机科学学院,宁夏,固原,756000 |
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| 基金项目： | 国家科技支撑计划，国家自然科学基金，宁夏高校科研基金 |
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| 摘 要： | 讨论了功能梯度热压电带拼接功能梯度材料中裂纹对SH波的散射,借助Fourier积分变换,将所研究的问题转化成对偶积分方程,运用Copson方法将对偶积分方程变为第二类Fred-holm积分方程进行求解,最后通过数值计算,讨论了材料梯度参数,温度,波数等因素对标准动应力强度因子的影响.
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| 关 键 词： | 功能梯度热压电材料 裂纹 F0urier变换 |
Scattering of SH wave on crack in functionally graded thermal piezoelectric strip of ceramic bonded to functionally graded materials |
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| MA Xu,LU Wanshun.Scattering of SH wave on crack in functionally graded thermal piezoelectric strip of ceramic bonded to functionally graded materials[J].Journal of Central China Normal University(Natural Sciences),2009,43(4). |
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| Authors: | MA Xu LU Wanshun |
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| Abstract: | Scattering of SH wave on crack in functionally graded thermal piezoelectric strip of ceramic bonded to functionally graded materials is discussed in the chapted. Fourier transforms are used to reduce the problem to the solution of a pair of dual integral equations, which are then reduced to a Fredholm integral equation of second kind by the Copson method. Finally, numerical results showed the effect of material gradient, the frequency of wave and so on upon the normalized stress intensity factor. |
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| Keywords: | functionally graded thermal piezoelectric materials crack Fourier transform |
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