Open AccessOn the relationship between J-integral and CTOD for CT and SENB specimens
Author(s) -
S. K. Kudari,
Krishnaraja G. Kodancha
Publication year - 2008
Publication title -
frattura ed integrità strutturale
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.368
H-Index - 19
ISSN - 1971-8993
DOI - 10.3221/igf-esis.06.01
Subject(s) - crack tip opening displacement , materials science , finite element method , enhanced data rates for gsm evolution , j integral , structural engineering , hinge , geometry , fracture (geology) , composite material , mathematics , fracture mechanics , stress intensity factor , computer science , engineering , telecommunications
In this investigation the relationship between J-integral and CTOD is studied considering a Compact Tensile (CT) and Single edge notched bend (SENB) specimens using finite element analysis. The magnitude of CTOD is estimated by 90o-intercept method and also by plastic hinge model. The results indicate that there exists a discrepancy in estimation of CTOD by 90o-intercept method and by plastic hinge model. The CTOD values obtained by both the methods are found to be linearly proportional to J-integral. The linear proportionality constant dn between CTOD and J is found to strongly depend on the method of estimation of CTOD, specimen geometry and a/W ratio of the specimens