IMECH-IR  > 非线性力学国家重点实验室
应力比对疲劳裂纹扩展速率和疲劳强度的影响
孙成奇; 李亚波; 雷铮强; 洪友士
Source Publication中国力学大会——2013论文摘要集
2013
Conference Name中国力学大会——2013
Conference Date2013-08-19
Conference Place中国北京
Abstract研究了不同应力比R下近门槛区裂纹扩展速率之间的关系,表明应力比R对近门槛区裂纹扩展速率和裂纹稳定扩展区裂纹扩展速率的影响可以表示成统一的形式,即da/dN=C(△K_(eff)-△K_(c th,o)~m,其中△K_(eff)=△K(1-R)~(-α)或△K_(eff)=(K_(max)~α(△K~+)~(1-α),△K_(c th,0)为裂纹萌生门槛值,C,m,α为与材料有关常数。进而,推导了应力比(平均应力)对疲劳强度的影响关系,并与文献中的实验结果(包含低
Keyword应力比 疲劳强度 裂纹扩展速率 门槛值 超高周疲劳 影响关系 裂纹萌生 裂纹稳定扩展 Goodman 平均应力 低周 实验结果:公式:常数:0
DepartmentLNM金属材料微结构与力学性能
Language中文
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/48652
Collection非线性力学国家重点实验室
Recommended Citation
GB/T 7714
孙成奇,李亚波,雷铮强,等. 应力比对疲劳裂纹扩展速率和疲劳强度的影响[C]中国力学大会——2013论文摘要集,2013.
Files in This Item: Download All
File Name/Size DocType Version Access License
IrCA392.pdf(800KB) 开放获取--View Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[孙成奇]'s Articles
[李亚波]'s Articles
[雷铮强]'s Articles
Baidu academic
Similar articles in Baidu academic
[孙成奇]'s Articles
[李亚波]'s Articles
[雷铮强]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[孙成奇]'s Articles
[李亚波]'s Articles
[雷铮强]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: IrCA392.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.