[1]白琛阳,周昌玉,贺小华.正交各向异性TA2紧凑拉伸试样应力应变场与J积分[J].南京工业大学学报(自然科学版),2016,38(03):38-43.[doi:10.3969/j.issn.1671-7627.2016.03.007]
BAI Chenyang,ZHOU Changyu,HE Xiaohua.Stress and strain field and J integral of orthotropic TA2 compact tension specimen[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2016,38(03):38-43.[doi:10.3969/j.issn.1671-7627.2016.03.007]
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正交各向异性TA2紧凑拉伸试样应力应变场与J积分(
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BAI Chenyang,ZHOU Changyu,HE Xiaohua.Stress and strain field and J integral of orthotropic TA2 compact tension specimen[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2016,38(03):38-43.[doi:10.3969/j.issn.1671-7627.2016.03.007]
)《南京工业大学学报（自然科学版）》[ISSN:1671-7627/CN:32-1670/N]
- 卷:
- 38
- 期数:
- 2016年03期
- 页码:
- 38-43
- 栏目:
- 出版日期:
- 2016-05-28
文章信息/Info
- Title:
- Stress and strain field and J integral of orthotropic TA2 compact tension specimen
- 文章编号:
- 1671-7627(2016)03-0038-06
- Keywords:
- TA2; orthotropy; CT specimen; J integral
- 分类号:
- TQ055.8
- 文献标志码:
- A
- 摘要:
- 针对工业纯钛TA2二维紧凑拉伸试样(CT试样),采用有限元软件ABAQUS计算平面应力、平面应变下各向同性与正交各向异性的应力应变场、裂纹张开位移(COD)以及J积分。结果表明:各向同性与正交各向异性应力应变场有明显差异。在相同载荷下,裂纹沿轧制方向裂纹尖端张开位移更大,且具有更大的J积分值。TA2轧制方向强度高,裂纹沿横向首先发生裂纹开裂,但是裂纹沿轧制方向扩展阻力更小,更易裂纹扩展。
- Abstract:
- In view of the 2D compact tension specimen(CT specimen)of pure titanium TA2,the stress field,strain field,crack opening displacement(COD)and J integral results of isotropy and orthotropy under plane stress and plane strain were calculated by the finite element software ABAQUS.Calculation results showed that stress field and strain field of isotropy and orthotropy were obviously different.Under the same loading conditions,the values of COD and J integral along the crack rolling direction were higher.The intensity of rolling direction was stronger.Crack firstly appeared in transverse direction,but extended more easily in rolling direction because of lower extending resistance.
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备注/Memo
- 备注/Memo:
-
收稿日期:2015-09-02
基金项目:国家自然科学基金(51475223,51075199); 江苏省“六大人才高峰”计划( 2014_ZBZZ-012)
作者简介:白琛阳(1991—),男,江苏常州人,硕士,主要研究为含裂纹正交各向异性钛金属结构失效评定图; 周昌玉(联系人),教授,E-mail:changyu_zhou@163.com.
引用本文:白琛阳,周昌玉,贺小华,等.正交各向异性TA2紧凑拉伸试样应力应变场与J积分[J].南京工业大学学报(自然科学版),2016,38(3):38-43..
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