A simple interference method has been used to measure the opening displacement of cracks in glass plates under eccentric tension load. The results have been compared with analytical predictions from the boundary collocation method and the Westergaard analysis. Since the crack opening displacement is
Finite elements for determination of crack tip elastic stress intensity factors
โ Scribed by Dennis M. Tracey
- Publisher
- Elsevier Science
- Year
- 1971
- Tongue
- English
- Weight
- 713 KB
- Volume
- 3
- Category
- Article
- ISSN
- 0013-7944
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โฆ Synopsis
A new type of finite element is introduced which embodies the inverse square root singularity present near a crack in an elastic medium. Using this element near the tip in two typical cracked configurations, stress intensity factors within 5 per cent of accepted values were obtained with meshes having as few as 250" of freedom.
๐ SIMILAR VOLUMES
A&met-The paper deals with the &rite element computation of the crack closure integrals (CCIs) and the stress intensity factors (SIFs) under mechanical and/or thermal loadings, which give rise to forces at nodes close to a crack tip region. Four examples are presented to illustrate the usefulness of