| 基于应力比值法的V形切口应力强度因子分析 |
| |
| 引用本文： | 平学成,野田尚昭,陈梦成.基于应力比值法的V形切口应力强度因子分析[J].上海力学,2011,32(1). |
| |
| 作者姓名： | 平学成 野田尚昭 陈梦成 |
| |
| 作者单位： | 华东交通大学载运工具与装备省部共建教育部重点实验室;九州工业大学机械工学科; |
| |
| 基金项目： | 国家自然科学基金项目(51065008); 九州工业大学外国研究人员奖学金项目; 江西省教育厅科研项目(GJJ10444) |
| |
| 摘 要： | 本文基于有限元分析技术建立了一种应力比值方法,用于计算V形切口的应力强度因子。该方法不需要在V形切口尖端采用反映应力奇异性的奇异单元。求解时,首先给定参考问题的广义应力强度因子,然后利用待求问题的应力值与参考问题的应力值之间的比值来求解待求问题的广义应力强度因子。算例采用切口尖端应力方法分析了平板的V形切口问题。计算结果表明,该方法计算精度较高,能够方便地用于求解相关的工程问题。
|
| 关 键 词： | 弹性材料 V切口 应力强度因子 应力比值 |
Stress Intensity Factor Analysis of V-notches based On A Stress Ratio Method |
| |
| PING Xue-cheng,NODA Nao-aki,CHEN Meng-cheng.Stress Intensity Factor Analysis of V-notches based On A Stress Ratio Method[J].Chinese Quarterly Mechanics,2011,32(1). |
| |
| Authors: | PING Xue-cheng NODA Nao-aki CHEN Meng-cheng |
| |
| Affiliation: | PING Xue-cheng1,NODA Nao-aki2,CHEN Meng-cheng1(1.Key Laboratory of Conveyance and Equipment of Ministry of Education,East China Jiaotong University,Nanchang 330013,China,2.Department of Mechanical Engineering,Kyushu Institute of Technology,1-1,Sensui-cho,Tobata,Kitakyushu 804-8550,Japan) |
| |
| Abstract: | A finite element method(FEM) called as stress ratio method was developed to solve generalized stress intensity factors of V-notches.The method doesn't need special elements accounting for the analytical form of a singularity.The stress values at the notch tip calculated by FEM were used and the stress intensity factors of sharp angular corners were evaluated from the ratio of stress values between a given problem and a reference one.As application the NTSM was used to solve GSIFs of V-notches in 2D plates.A... |
| |
| Keywords: | elasticity V-notch stress intensity factor stress ratio |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
