IMECH-IR  > 非线性力学国家重点实验室
A Dugdale model based geometrical amplifier enables the measurement of separation-to-failure for a cohesive interface
Wei YJ(魏宇杰)
Source PublicationTHEORETICAL & APPLIED MECHANICS LETTERS
2011
Volume1Issue:1Pages:011006
ISSN2095-0349
AbstractRegardless of all kinds of different formulae used for the traction-separation relationship in cohesive zone modeling, the peak traction $\sigma_{ m}$ and the separation-to-failure $\delta_0$ (or equivalently the work-to-separation $\Gamma$) are the primary parameters which control the interfacial fracture behaviors. Experimentally, it is hard to determine those quantities, especially for $\delta_0$, which occurs in a very localized region with possibly complicated geometries by material failure. Based on the Dugdale model, we show that the separation-to-failure of an interface could be amplified by a factor of $L/r_{ p}$ in a typical peeling test, where $L$ is the beam length and $r_{ p}$ is the cohesive zone size. Such an amplifier makes $\delta_0$ feasible to be probed quantitatively from a simple peeling test. The method proposed here may be of importance to understanding interfacial fractures of layered structures, or in some nanoscale mechanical phenomena such as delamination of thin films and coatings.
URL查看原文
Language英语
DepartmentLNM微结构计算力学(筹)
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/48734
Collection非线性力学国家重点实验室
Recommended Citation
GB/T 7714
Wei YJ. A Dugdale model based geometrical amplifier enables the measurement of separation-to-failure for a cohesive interface[J]. THEORETICAL & APPLIED MECHANICS LETTERS,2011,1(1):011006.
APA Wei YJ.(2011).A Dugdale model based geometrical amplifier enables the measurement of separation-to-failure for a cohesive interface.THEORETICAL & APPLIED MECHANICS LETTERS,1(1),011006.
MLA Wei YJ."A Dugdale model based geometrical amplifier enables the measurement of separation-to-failure for a cohesive interface".THEORETICAL & APPLIED MECHANICS LETTERS 1.1(2011):011006.
Files in This Item: Download All
File Name/Size DocType Version Access License
A Dugdale model base(1362KB) 开放获取LicenseView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wei YJ(魏宇杰)]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wei YJ(魏宇杰)]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wei YJ(魏宇杰)]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: A Dugdale model based geometrical amplifier enables the measurement of separation-to-failure for a cohesive interface.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

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