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A MULTICORNER VARIABLE ORDER SINGULARITY TRIANGLE TO MODEL NEIGHBORING SINGULARITIES

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Title A MULTICORNER VARIABLE ORDER SINGULARITY TRIANGLE TO MODEL NEIGHBORING SINGULARITIES
 
Creator MAITI, SK
 
Subject finite-elements
crack
microcracks
 
Description A six noded triangular finite element has been proposed to model variable order singularities in the first derivatives of field variables occurring at multiple locations (up to three) lying in close proximity. The element satisfies the convergence requirements fully. The element will be very useful in the analysis of neighbouring cracks, zig-zag cracks. kinked cracks. etc., involving mechanical and/or thermal loadings. The first degenerate form, which is a two point variable order singularity element, can be used, for example, to cover the distance between two adjacent crack tips. The second degenerate form, which is a one point variable order singularity element, can be used around a crack tip like any other crack tip elements. Six case studies have been reported, three involving mechanical loadings and the other three thermal loadings. These have helped to check the performance of the element and its two degenerate forms. The accuracy of the results in all the examples is good.
 
Publisher JOHN WILEY & SONS LTD
 
Date 2011-08-16T17:51:54Z
2011-12-26T12:55:04Z
2011-12-27T05:43:38Z
2011-08-16T17:51:54Z
2011-12-26T12:55:04Z
2011-12-27T05:43:38Z
1992
 
Type Article
 
Identifier INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING, 35(2), 391-408
0029-5981
http://dx.doi.org/10.1002/nme.1620350210
http://dspace.library.iitb.ac.in/xmlui/handle/10054/9579
http://hdl.handle.net/10054/9579
 
Language en