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Computational 3d fracture analysis in axisymmetric media
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Date
2008
Author
Kutlu Ünal, Özge
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In this study finite element modeling of three dimensional elliptic and semielliptic cracks in a hollow cylinder is considered. Three dimensional crack and cylinder are modeled by using finite element analysis program ANSYS. The main objectives of this study are as follows. First, Ansys Parametric Design Language (APDL) codes are developed to facilitate modeling of different types of cracks in cylinders. Second, by using these codes the effect of some parameters of the problem like crack location, cylinder’s radius to thickness ratio (R/t), the crack geometry ratio (a/c) and crack minor axis to cylinder thickness ratio (a/t) on stress intensity factors for surface and internal cracks are examined. Mechanical and thermal loading cases are considered. Displacement Correlation Technique (DCT) is used to obtain Stress Intensity Factors.
Subject Keywords
Mechanical engineering.
URI
http://etd.lib.metu.edu.tr/upload/12609872/index.pdf
https://hdl.handle.net/11511/17949
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Graduate School of Natural and Applied Sciences, Thesis
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Ö. Kutlu Ünal, “Computational 3d fracture analysis in axisymmetric media,” M.S. - Master of Science, Middle East Technical University, 2008.
