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Thermo-Mechanical Coupling For Ablation, Rui Fu
Thermo-Mechanical Coupling For Ablation, Rui Fu
Theses and Dissertations--Mechanical Engineering
In order to investigate the thermal stress and expansion as well as the associated strain effect on material properties caused by high temperature and large temperature gradient, a two-way thermo-mechanical coupling solver is developed. This solver integrates a new structural response module to the Kentucky Aerothermodynamics and Thermal response System (KATS) framework. The structural solver uses a finite volume approach to solve either hyperbolic equations for transient solid mechanics, or elliptic equations for static solid mechanics. Then, based on the same framework, a quasi-static approach is used to couple the structural response and thermal response to estimate the thermal expansion …
Verification And Validation Studies For The Kats Aerothermodynamics And Material Response Solver, Olivia Schroeder
Verification And Validation Studies For The Kats Aerothermodynamics And Material Response Solver, Olivia Schroeder
Theses and Dissertations--Mechanical Engineering
Modeling the atmospheric entry of spacecraft is challenging because of the large number of physical phenomena that occur during the process. In order to study thermal protection systems, engineers rely on high fidelity solvers to provide accurate predictions of both the thermochemical environment surrounding the heat shield, and its material response. Therefore, it is necessary to guarantee that the numerical models are correctly implemented and thoroughly validated. In recent years, a high-fidelity modeling tool has been developed at the University of Kentucky for the purpose of studying atmospheric entry. The objective of this work is to verify and validate this …