|
|||||
|
|
| 裂纹端部细短纤维的应力分析 | |
| 引用本文： | 王利民,徐世煙,陈浩然. 裂纹端部细短纤维的应力分析[J]. 力学学报, 2002, 34(2): 200-207 |
| 作者姓名： | 王利民 徐世煙 陈浩然 |
| 作者单位： | 1. 大连理工大学近海与海岸工程国家重点实验室,大连,116024;山东工程学院,淄博,255012 2. 大连理工大学近海与海岸工程国家重点实验室,大连,116024 3. 大连理工大学工程力学系,大连,116024 |
| 基金项目： | 国家杰出青年基金（59625814），中国博士后科学基金资助项目 |
| 摘 要： | 基于裂纹端部存在与其裂纹面相垂直的二相细短纤维分析模型，采用叠加原理推导了求解纤维表面应力分布函数的积分方程，通过简化得到了该方程的解析表达显式，该积分方程的特征值方程是纤维几何参数，材料常数以及纤维相对于裂纹位置的相关函数，当材料参数不满足特征方程时，积分方程将具有唯一解；并借助数值方法，给出了纤维剪应力分布算例，和纤维对应力强度因子的影响。 |
| 关 键 词： | 裂纹 短纤维 应力分析 叠加原理 应力强度因子 纤维几何参数 纤维强韧化材料 |
| 修稿时间： | 2000-08-13 |
THE STRESS ANALYSIS OF FINE SHORT FIBER NEAR A CRACK TIP |
|
| Wang Limin,Xu Shilang,Chen Haoran. THE STRESS ANALYSIS OF FINE SHORT FIBER NEAR A CRACK TIP[J]. chinese journal of theoretical and applied mechanics, 2002, 34(2): 200-207 | |
| Authors: | Wang Limin Xu Shilang Chen Haoran |
| Abstract: | A mechanics analysis model of the matrix crack with a fine short second medium fiber is established in this paper. By means of the superposition method of elastic stress fields, the second type of Fredholm integral equation is formed, in which a shear stress distribution function on the fiber surface is the unknown guantity. The explicit formula of the shear stress distribution function is found by simplified strategy. The corresponding eigenfunction equation of the integral equation is consists of material constants, the geometry parameters and the location of the fiber near the crack tip. The integral equation has a unique solution if the eigenfunction equation is not satisfied. Based upon numerical method, several examples for shear stress distribution function of fiber are calculated, and the numerical examples of the fiber effect on stress intensity factor are also given in the paper. |
| Keywords: | crack short fiber integral equation stress analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
| 点击此处可从《力学学报》浏览原始摘要信息 | |
| 点击此处可从《力学学报》下载全文 | |