IMECH-IR  > 力学所知识产出(1956-2008)
Steady-state crack growth and fracture work based on the theory of mechanism-based strain gradient plasticity
Wei YG(魏悦广); Qiu X; Hwang KC; Wei, Y (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100080, Peoples R China.
2003
发表期刊Engineering Fracture Mechanics
卷号71页码:107-125
ISSN0013-7944
摘要Mode I steady-state crack growth is analyzed under plane strain conditions in small scale yielding. The elastic-plastic solid is characterized by the mechanism-based strain gradient (MSG) plasticity theory [J. Mech. Phys. Solids 47 (1999) 1239, J. Mech. Phys. Solids 48 (2000) 99]. The distributions of the normal separation stress and the effective stress along the plane ahead of the crack tip are computed using a special finite element method based on the steady-state fundamental relations and the MSG flow theory. The results show that during the steady-state crack growth, the normal separation stress on the plane ahead of the crack tip can achieve considerably high value within the MSG strain gradient sensitive zone. The results also show that the crack tip fields are insensitive to the cell size parameter in the MSG theory. Moreover, in the present research, the steady-state fracture toughness is computed by adopting the embedded process zone (EPZ) model. The results display that the steady-state fracture toughness strongly depends on the separation strength parameter of the EPZ model and the length scale parameter in the MSG theory. Furthermore, in order for the results of steady crack growth to be comparable, an approximate relation between the length scale parameters in the MSG theory and in the Fleck-Hutchinson strain gradient plasticity theory is obtained.
学科领域力学
DOI10.1016/S0013-7944(03)00065-1
收录类别SCI ; EI
语种英语
WOS记录号WOS:000185968600006
关键词[WOS]TIP FIELDS ; INTERFACE ADHESION ; MICRO-INDENTATION ; SINGLE-CRYSTALS ; 1ST PRINCIPLES ; SOLIDS ; RESISTANCE ; MODEL ; DELAMINATION ; DECOHESION
WOS研究方向Mechanics
WOS类目Mechanics
引用统计
被引频次:25[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/17667
专题力学所知识产出(1956-2008)
通讯作者Wei, Y (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100080, Peoples R China.
推荐引用方式
GB/T 7714
Wei YG,Qiu X,Hwang KC,et al. Steady-state crack growth and fracture work based on the theory of mechanism-based strain gradient plasticity[J]. Engineering Fracture Mechanics,2003,71:107-125.
APA 魏悦广,Qiu X,Hwang KC,&Wei, Y .(2003).Steady-state crack growth and fracture work based on the theory of mechanism-based strain gradient plasticity.Engineering Fracture Mechanics,71,107-125.
MLA 魏悦广,et al."Steady-state crack growth and fracture work based on the theory of mechanism-based strain gradient plasticity".Engineering Fracture Mechanics 71(2003):107-125.
条目包含的文件 下载所有文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Steady.pdf(315KB) 开放获取--浏览 下载
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[魏悦广]的文章
[Qiu X]的文章
[Hwang KC]的文章
百度学术
百度学术中相似的文章
[魏悦广]的文章
[Qiu X]的文章
[Hwang KC]的文章
必应学术
必应学术中相似的文章
[魏悦广]的文章
[Qiu X]的文章
[Hwang KC]的文章
相关权益政策
暂无数据
收藏/分享
文件名: Steady.pdf
格式: Adobe PDF
此文件暂不支持浏览
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。