XFEM Analysis of Non-Linear Thermomechanical Problems

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Alipour, Kamran | 2013

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 44908 (45)
University: Sharif University of Technology
Department: Aerospace Engineering
Advisor(s): Kouchakzadeh, Mohammad Ali
Abstract:
In this thesis a nonlinear thermomechanical model based on Lagrangian-extended finite element method is proposed to simulate discontinuities under thermal and mechanical loads. At first, a geometrically nonlinear model is presented for large deformation problems and then the model is completed by considering thermomechanical aspects. In extended finite element method, different enrichment functions are stated and also using analytical methods, a new set of functions are introduced to enrich the temperature filed around biomaterial crack tips. For numerical simulations, an object oriented code is created in C++. The results of numerical simulations are verified by the use of ABAQUS
Keywords:
Crack ; Extended Finite Element Method ; Nonlinear Thermomechanical Model

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