ISSN:
1662-8985
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
This paper describes the development of a software to perform three-dimensional crackpropagation analyses. The software is based on the conventional finite element method with secondorder tetrahedral element and an automatic mesh generation software. Hexahedral finite elementshave historically been used in fracture analyses and methodologies to compute the crack parametershave been developed for the hexahedral elements. In present research, the authors have developed aVCCM (virtual crack closure-integral method) for the second order tetrahedral finite element. Use ofthe tetrahedral element allows us to utilize an automatic mesh generation software. The direction andrate of crack propagation are predicted based on the stress intensity factors and the shape of crack isupdated. Hence, a software package containing the modules for mesh generation, for finite elementanalysis, for stress intensity factor evaluation, for predicting the rate and the direction of crackpropagation and for updating crack configuration, can be developed
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.33-37.901.pdf
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