Life assessment of a stationary jet engine component with a three-dimensional structural model

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2004

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Gözütok, Tanzer

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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.

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http://etd.lib.metu.edu.tr/upload/2/12604894/index.pdf
https://hdl.handle.net/11511/14089

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Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

T. Gözütok, “Life assessment of a stationary jet engine component with a three-dimensional structural model,” M.S. - Master of Science, Middle East Technical University, 2004.