Abstract
本文基于Castigliano's 定理和界面剪滞模型, 得到了含界面相效应的复合材料币形裂纹张开位移控制方程, 并按照第二类Fredholm 积分方程的迭代解法给出其数值结果, 为便于分析界面相参数增韧效果等影响, 寻求了该控制方程的近似解, 对近似解进行了误差估计, 在此基础上得到了界面剪切模量, 裂纹长度, 界面厚度, 纤维半径, 纤维体积分数以及材料性质等参数对币形裂纹桥联
效应的影响.
Based on the Castigliano's theorem and the interface shear-lag model, the governing equations for the coin-shaped crack opening displacement of composites with interfacial phase effect are obtained. According to the iterative method of the second Fredholm integral equation, the numerical results are given as Which is easy to analyze the effect of toughening effect on the phase parameters of the interface. The approximate solution of the governing equation is obtained and the error of the approximate solution is estimated. Based on this, the interfacial shear modulus, crack length, interface thickness, fiber radius, fiber Volume fraction and material properties on the bridging effect of coin cracks.
效应的影响.
Based on the Castigliano's theorem and the interface shear-lag model, the governing equations for the coin-shaped crack opening displacement of composites with interfacial phase effect are obtained. According to the iterative method of the second Fredholm integral equation, the numerical results are given as Which is easy to analyze the effect of toughening effect on the phase parameters of the interface. The approximate solution of the governing equation is obtained and the error of the approximate solution is estimated. Based on this, the interfacial shear modulus, crack length, interface thickness, fiber radius, fiber Volume fraction and material properties on the bridging effect of coin cracks.
| Translated title of the contribution | Mechanical analysis of the effect of fibre-bridging across a penny crack |
|---|---|
| Original language | Chinese |
| Pages (from-to) | 13-21 |
| Number of pages | 9 |
| Journal | Gongcheng Lixue |
| Volume | 12 |
| Issue number | 3 |
| Publication status | Published - Aug 1995 |
Keywords
- Composite
- Bridging
- Penny-shape crack
- Interphase
- Approximate solution