Usage of special finite elements for solution of fracture mechanics problems
Journal Title: Вісник Тернопільського національного технічного університету - Year 2016, Vol 82, Issue 2
Abstract
The paper suggests the usage of special modified finite elements, which account for the square-root singularity of stress and strain fields at the crack top and allows high-precision evaluation of stress intensity factors. These elements are introduced into the programs of finite element method for the analysis of plate problems of termoelasticity of anisotropic solids containing cracks. The comparison is done between the known analytic solutions and the results obtained using special finite elements and modified finite elements. High accuracy of the results obtained with the usage of modified special finite elements has been proved.
Authors and Affiliations
Viktor Koshelyuk, Yuriy Tulashvili
Keywords
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