| 弹性材料夹杂含裂纹梯度材料的接触问题 |
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| 引用本文： | 陈耀庚,杨晓春.弹性材料夹杂含裂纹梯度材料的接触问题[J].宁夏师范学院学报,2009,30(3):16-21. |
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| 作者姓名： | 陈耀庚 杨晓春 |
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| 作者单位： | 1. 宁夏师范学院,数学与计算机科学学院,宁夏,固原,756000
2. 大连海事大学,数学系,辽宁,大连,116023 |
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| 基金项目： | 国家自然科学基金资助项目，宁夏自然科学基金资助项目，宁夏师范学院青年科研项目 |
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| 摘 要： | 研究弹性材料夹杂含裂纹功能梯度材料的接触问题．利用Fourier积分变换，将问题转化为关于未知位错密度函数的奇异积分方程，再用配点法对奇异积分方程进行数值求解．获得了裂纹尖端标准应力强度因子．数值结果显示了标准应力强度因子与梯度材料非均匀参数、摩擦系数、裂纹长度以及裂纹距刚性压头中心水平距离的关系．
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| 关 键 词： | 接触问题 功能梯度材料 裂纹 |
The Contact Problem of FGM with Crack Mingled with Elastic Material |
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| CHEN Yaogeng,YANG Xiaochun.The Contact Problem of FGM with Crack Mingled with Elastic Material[J].Journal of Ningxia Teachers College,2009,30(3):16-21. |
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| Authors: | CHEN Yaogeng YANG Xiaochun |
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| Institution: | 1.College of Mathematics and Computer Science;Ningxia Teachers University;Guyuan;Ningxia 756000;2.Mathematics Department;Dalian Maritine University;Dalian;Liaoning 116023 |
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| Abstract: | The contact problem of half functionally graded material with eccentrical crack felt uniformity elasticity strip is studied in this paper.The problem was formulated in terms of a singular integral equation by using Fourier transforms.It was numerically solved by representing the unknown dislocation density by a truncated series of Chebyshev polynomials leading to a linear system of equations.The stress intensity factor results were discussed with respect to the influences of the strength of the nonhomogenei... |
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| Keywords: | Contact problem Functionally graded material Crack |
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