In this thesis, fatigue life of a stationary component of F110-GE-100 jet engine is assessed. Three-dimensional finite element model of the component itself and the neighboring components are modeled by using a finite element package program, ANSYS, in order to perform thermal, stress and fracture mechanics analyses. Coupled-field (thermal-stress) analysis is performed to identify fracture-critical locations and to describe the stress histories of the components. After determining the critical location, fracture mechanics calculations are performed by modeling a crack of various lengths at the critical locations with FRANC3D in order to calculate mode I and II stress intensity factors and geometry factors beta. Combining the outputs of coupled-field and fracture mechanics analyses, fatigue lives and creep rupture times are calculated with a crack growth life prediction program, AFGROW. A linear damage summation method is used to assess the fatigue life of the component of interest.
Identifer | oai:union.ndltd.org:METU/oai:etd.lib.metu.edu.tr:http://etd.lib.metu.edu.tr/upload/2/12604894/index.pdf |
Date | 01 April 2004 |
Creators | Gozutok, Tanzer |
Contributors | Akgun, Mehmet A |
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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