Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Journal of Ship Mechanics》 2006-05
Add to Favorite Get Latest Update

Three dimensional FE analysis of the plastic zone size near the crack tip

LIU Qiang1,WANG Fang1,HUANG Xiao-ping1,CUI Wei-cheng2 (1 School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiao Tong University,Shanghai 200030,China;2 China Ship Scientific Research Center,Wuxi 214082,China)  
The plastic zone size of the crack tip is relative to three dimensional constraint which depends upon not only the plate thickness but also the load and the material property.That means it would have great limitation in applications when simply classifying a plate to planestress or planestrain according to its thickness.There is no acknowledged fomulae in precisely calculating the plastic zone size when three dimensional effect has to be considered.In this paper,three dimensional plastic zone size in the vicinity of a crack in a center through-cracked plate was investigated using the finite element tool,taking the influence of plate thickness and hardening exponent and yield strength and Poisson's ratio into account.An unique expression was given after comparing the FE results with the theoretical predictions under plane stress and plane strain conditions.
【Fund】: 国家高新技术研究发展计划(863计划)资助项目(2001AA602021)
【CateGory Index】: O346.1
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved