基于FRANC3D计算三维疲劳裂纹最大应力强度因子

英文篇名：Calculation of 3D Fatigue Crack Greatest Stress Intensity Factor Based on FRANC3D
中文刊名：机械工程师
英文刊名：Mechanical Engineer
作者：于世光 ; 朱如鹏
英文作者：YU Shi- guang ; ZHU Ru- peng ( College of Mechanical Engineering ; Nanjing University of Aeronautics and Astronautics ; Nanjing 210016 ; China)
中文关键词：边界元法 ; 强度因子(SIF) ; FRANC3D
英文关键词：boundary element method ; intensity factor(SIF) ; FRANC3D
出版日期：2008-06-10
机构：南京航空航天大学机电学院,南京航空航天大学机电学院南京210016,南京210016
年：2008
期：06
出版单位：机械工程师

摘要

文中建立了三维模型并借助边界元分析软件FRANC3D采用边界元法计算了三维表面裂纹前沿不同位置处的应力强度因子,说明了FRANC3D基于的边界元理论计算半椭圆型表面裂纹应力强度因子的过程,并与理论公式计算结果相比较。结果表明,软件计算结果与理论解误差较小,裂纹最深处应力强度因子最大。
This paper established a three- dimensional model and calculated different locations of the stress intensity factor with boundary element analysis software- FRANC3D. Introduced the Boundary Element Theory to calculate stress intensity factor of a type of semi- elliptical surface cracks, with the theoretical calculation results compared meanwhile. The results show that: Software calculated results with a little error, the biggest stress intensity factor in the innermost of the crack.

引文

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