ANALYSIS THE FORMULA OF STRESS INTENSITY FACTORS FOR THE COMPACT TENSION SHEAR TEST

YUAN WeiJun; XIE YuJun; CHENG ZhiFei

doi:10.16579/j.issn.1001.9669.2021.03.031

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ANALYSIS THE FORMULA OF STRESS INTENSITY FACTORS FOR THE COMPACT TENSION SHEAR TEST

更新时间：2022-09-22

- ANALYSIS THE FORMULA OF STRESS INTENSITY FACTORS FOR THE COMPACT TENSION SHEAR TEST
- Journal of Mechanical Strength Vol. 43, Issue 3, Pages: 726-730(2021)
- 作者机构：
  
  1. 中国石油大学(华东)储运与建筑工程学院
  2. 辽宁石油化工大学机械工程学院
  3. 中国石油集团工程有限公司北京项目管理分公司
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2021.03.031
  CLC：
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YUAN WeiJun, XIE YuJun, CHENG ZhiFei. ANALYSIS THE FORMULA OF STRESS INTENSITY FACTORS FOR THE COMPACT TENSION SHEAR TEST. [J]. 43(3):726-730(2021)
DOI：

YUAN WeiJun, XIE YuJun, CHENG ZhiFei. ANALYSIS THE FORMULA OF STRESS INTENSITY FACTORS FOR THE COMPACT TENSION SHEAR TEST. [J]. 43(3):726-730(2021) DOI： 10.16579/j.issn.1001.9669.2021.03.031.

摘要

Richard提出的紧凑拉剪试验(CTS)是较常用的I、II复合型加载试验类型,相关文献已经给出CTS试验对应的应力强度因子公式。由于该公式在之后的研究中出现多种不同形式,因此确定正确的CTS试验应力强度因子公式是十分必要的。针对目前文献中出现的多种CTS试验应力强度因子公式,通过与原文曲线进行比较并确定公式。为进一步验证应力强度因子公式的正确性,将聚苯乙烯(GPPS)板加工成CTS试件并进行试验,取得断裂载荷峰值。将多个公式计算的应力强度因子与利用扩展有限元法(XFEM)计算的应力强度因子进行比较,最终确定适用于CTS试验的应力强度因子公式。

Abstract

The Compact Tension Shear（ CTS） specimen proposed by Richard is a commonly test type used in mixed ModeI/II loading. The formula of stress intensity factors（ SIFs） for the CTS test has already given by relevant literature. Since the formula appeared in different forms in the subsequent research,it is very necessary to determine the correct formula of SIFs for the CTS test. By comparing the various formulas obtained by the literatures with the normalized SIFs‘ curve in Richard’s original articles,this paper identifies the correct formula of SIFs for the CTS test in Richard’s original articles. CTS specimens made from general-purpose Polystyrenes（ GPPS） under mixed Mode-I/II loading were investigated to verify the correctness of the formulas of SIFs provided in Richard’s original articles. Compared the SIFs calculated by using the formulas appeared in the literatures and the extended finite element method（ XFEM） by Abaqus. Finally,the formula of SIFs for CTS test can be determined.

关键词

应力强度因子XFEM有限元CTS试验

Keywords

Stress intensity factorsExtended finite element method（XFEM）Finite element methodCTS test

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