FINITE ELEMENT ANALYSIS OF THROUGH THICKNESS EFFECTS ON 300M STEEL STRESS INTENSITY FACTOR

XU Liang; ZHANG Ning; ZHOU Song; WANG Lei; MA Chuang; LIU Peng

doi:10.16579/j.issn.1001.9669.2016.01.031

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FINITE ELEMENT ANALYSIS OF THROUGH THICKNESS EFFECTS ON 300M STEEL STRESS INTENSITY FACTOR

更新时间：2022-09-22

- FINITE ELEMENT ANALYSIS OF THROUGH THICKNESS EFFECTS ON 300M STEEL STRESS INTENSITY FACTOR
- Journal of Mechanical Strength Vol. 38, Issue 1, Pages: 167-172(2016)
- 作者机构：
  
  1. 沈阳航空航天大学机电工程学院
  2. 沈阳航空航天大学航空制造工艺数字化国防重点实验室
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2016.01.031
  CLC：
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XU Liang, ZHANG Ning, ZHOU Song, et al. FINITE ELEMENT ANALYSIS OF THROUGH THICKNESS EFFECTS ON 300M STEEL STRESS INTENSITY FACTOR. [J]. 38(1):167-172(2016)
DOI：

XU Liang, ZHANG Ning, ZHOU Song, et al. FINITE ELEMENT ANALYSIS OF THROUGH THICKNESS EFFECTS ON 300M STEEL STRESS INTENSITY FACTOR. [J]. 38(1):167-172(2016) DOI： 10.16579/j.issn.1001.9669.2016.01.031.

摘要

基于Ansys软件建立了300M钢不同厚度M(T)试样的三维应力强度因子计算模型,比较了不同厚度下应力强度因子的数值解。将不同厚度下应力强度因子的数值解与解析解通过Paris公式拟合得到相应的a-N曲线并与实验数据进行对比,结果表明:应力强度因子有限元数值解具有厚度效应,对于不同厚度下的解析解有一定的修正作用。

Abstract

Based on ANSYS,a finite element model of calculating stress intensity factor（ SIF） for 300 M steel M（ T）sample with different thickness was established and the numerical solutions of SIF for different thickness were compared. The aN curves were accordingly fitted through the SIF numerical solutions and the SIF analytical solutions of different thickness and the Paris formula. And the fitting curves were compared with the experimental data. The results show that the thickness effect influences the finite element numerical solutions of SIF considerably and for the analytical solutions of different thickness,the numerical solutions have certain thickness correction.

关键词

Ansys应力强度因子厚度效应厚度修正

Keywords

ANSYSStress intensity factorThickness effectThickness correction

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