Fracture investigation at V-notch tip using coherent gradient sensing (CGS) | |
Yao, XF ; Yeh, HY ; Xu, W | |
2010-05-07 ; 2010-05-07 | |
关键词 | v-notch coherent gradient sensing stress intensity factor fracture STRESS INTENSITY FACTORS SYNTACTIC EPOXY FOAMS MECHANICS APPLICATIONS CRACK SINGULARITIES SENSITIVITY INITIATION CURVATURE ACCURACY CORNERS Mechanics |
中文摘要 | Local deformation field and fracture characterization of mode I V-notch tip are studied using coherent gradient sensing (CGS). First, the governing equations that relate to the CGS measurements and the elastic solution at mode 1 V-notch tip are derived in terms of the stress intensity factor, material constant, notch angle and fringe order. Then, a series of CGS fringe patterns of mode I V-notch are simulated, and the effects of the notch angle on the shape and size of CGS fringe pattern are analyzed. Finally, the local deformation field and fracture characterization of mode I V-notch tip with different V-notch angles are experimentally investigated using three-point-bending specimen via CGS method. The CGS interference fringe patterns obtained from experiments and simulations show a good agreement. The stress intensity factor obtained from CGS measurements shows a good agreement with finite element results under K-dominant assumption. (c) 2005 Elsevier Ltd. All rights reserved. |
语种 | 英语 ; 英语 |
出版者 | PERGAMON-ELSEVIER SCIENCE LTD ; OXFORD ; THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND |
内容类型 | 期刊论文 |
源URL | [http://hdl.handle.net/123456789/15898] ![]() |
专题 | 清华大学 |
推荐引用方式 GB/T 7714 | Yao, XF,Yeh, HY,Xu, W. Fracture investigation at V-notch tip using coherent gradient sensing (CGS)[J],2010, 2010. |
APA | Yao, XF,Yeh, HY,&Xu, W.(2010).Fracture investigation at V-notch tip using coherent gradient sensing (CGS).. |
MLA | Yao, XF,et al."Fracture investigation at V-notch tip using coherent gradient sensing (CGS)".(2010). |
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