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&rsquo / 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.
| Identifer | oai:union.ndltd.org:METU/oai:etd.lib.metu.edu.tr:http://etd.lib.metu.edu.tr/upload/12609872/index.pdf |
| Date | 01 September 2008 |
| Creators | (unal) Kutlu, Ozge |
| Contributors | Kadioglu, Suat |
| Publisher | METU |
| Source Sets | Middle East Technical Univ. |
| Language | English |
| Detected Language | English |
| Type | M.S. Thesis |
| Format | text/pdf |
| Rights | To liberate the content for public access |
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