52 research outputs found
Application of the Finite Element Iterative Method to cracks and sharp notches in orthotropic media
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3-D elastic-plastic investigation of fracture parameters in side-grooved compact specimen
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A 3-D six-noded finite element containing a lambda singularity
No full textA three-dimensional six-noded prism (wedge) finite element containing a singularity of order lambda is developed. The interpolation functions of the displacement allow for variations proportional to the power lambda of the distance from the crack front along the crack surface and to the distance in the perpendicular direction. The element is compatible with standard wedge (6-noded) and brick (8-noded) isoparametric elements. Three problems are studied to examine the proposed element, namely, a penny-shaped crack in a cylinder, an edge crack in an homogeneous material, and a crack perpendicular to a bimaterial interface
Use of modified standard 20-node isoparametric brick elements for representing stress/strain fields at a crack tip for elastic and perfectly plastic material
No full textThree-dimensional stress intensity factor analysis of a surface crack in a high-speed bearing
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