%0 Journal Article
%T Study on the Relationship Between J-Integral and COD<br>STUDY ON THE RELATIONSHIP BETWEEN J-INTEGRAL AND COD
%A Y G Cao
%A X Y Sun
%A K Tanaka
%A <br>
%J 金属学报(英文版)
%D 2007
%I 
%X J-integral and crack opening displacement δ (COD) were important parameters for characterizationof fractures in engineering materials. The relationship between J-integral and COD has beeninvestigated for a long time and was generally represented as J = mσyδ, where σy is the yield strengthand m is a function of specimen geometry and material properties. To determine the value of m,extensive studies and experiments have been performed. The method that used the fracture-surfacetopography analysis (FRASTA) for determining J-integral from fracture surfaces of materials wasintroduced. On the basis of the relationship between COD and fracture surface average profile,the relationship between J-integral and COD was deduced and compared with the generally usedequation. The method was experimentally confirmed to be able to provide a new way to determinethe relationship between J-integral and COD.
%K FRASTA (fracture-surface topography analysis)
%K J-integral
%K COD (crack opening displacement)
%K RELATIONSHIP
%K able
%K basis
%K surfaces
%K average
%K profile
%K fracture
%K FRASTA
%K method
%K used
%K analysis
%K studies
%K experiments
%K determine
%K value
%K yield
%K function
%K specimen
%K geometry
%K material properties<br>表面张力
%K 计算方法
%K 强度
%K 分析方法
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=C19B08D052F5FD8445F4BB80A1A5D7BF&aid=EAD30386A5039D269E74C189635AEC2E&yid=A732AF04DDA03BB3&vid=A04140E723CB732E&iid=B31275AF3241DB2D&sid=84A93BA251D28205&eid=D1D63D047E37A053&journal_id=1006-7191&journal_name=金属学报(英文版)&referenced_num=0&reference_num=20