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http://dx.doi.org/10.3795/KSME-A.2005.29.9.1225

Computation of Crack Tip Mode I Stress Intensity Factor of a Specimen for Measuring Slow Crack Growth Resistance of Plastic Pipes Using Finite-Element Method  

Choi, Sun-Woong (한남대학교 생명정보신소재공학과)
Park, Yeong-Joo (한남대학교 대학원 기계공학과)
Suh, Yeong-Sung (한남대학교 기계공학과)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.29, no.9, 2005 , pp. 1225-1234 More about this Journal
Abstract
Mode I stress intensity factor $(K_I)$ of Notched Ring Test(NRT) specimen for measuring slow crack growth resistance was found using finite-element method. The theoretical $K_I$ value of NRT was not available in any references and could not be solved analytically. At first, in order to verify the accuracy of the finite-element approach, published $K_I$ values of several cracks were calculated and compared with finite-element results. The results were in good agreement within inherent errors of theoretical $K_I$. Finally the mode I stress intensity factor of NRT was found using 2- and 3-dimensional finite-element methods and expressed as a function of the applied load. This enabled direct comparison of resistance to slow crack growth between NRT and Notched Pipe Test(NPT), which employ different loading regime.
Keywords
Stress Intensity Factor; Slow Crack Growth Resistance or Resistance to Slow Crack Growth; Plastic ripe; finite-Element Method;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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