On the use of isoparametric finite elements in linear fracture mechanics

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Published
1976-01
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  • http://onlinelibrary.wiley.com/termsAndConditions#vor
DOI
  • 10.1002/nme.1620100103
Publisher
Wiley

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<jats:title>Abstract</jats:title><jats:p>Quadratic isoparametric elements which embody the inverse square root singularity are used in the calculation of stress intensity factors of elastic fracture mechanics. Examples of the plane eight noded isoparametric element show that it has the same singularity as other special crack tip elements, and still includes the constant strain and rigid body motion modes. Application to three‐dimensional analysis is also explored. Stress intensity factors are calculated for mechanical and thermal loads for a number of plane strain and three‐dimensional problems.</jats:p>

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