What is it about?
In this paper, a computational procedure with the general-purpose commercial finite element analysis software, ABAQUS, has been proposed to predict the thermal and ablative response of the TACOT 3.0 test case (1D) pyrolyzing material. The FEA procedure consists of multiple user subroutines and the Arbitrary Lagrangian-Eulerian (ALE) adaptive remesh algorithm, which enables a tight coupling between the heat conduction considering material decomposition and the progressive material removal. The predicted temperature and ablation histories using the proposed FEA procedure compare favorably with those predicted using FIAT, i.e., a well-validated pyrolyzing ablation code.
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Why is it important?
The essence of the paper is to demonstrate that a commercial finite element code, such as ABAQUS, can be used to perform ablation calculations. Currently, these calculations have required specialized, custom written codes and the advantages of using a commercial code have been demonstrated in other disciplines (e.g. structural and CFD). Future work will also investigate the effectiveness, limitation, and applicability of the proposed procedure for a broader range of ablation conditions.
Perspectives
The user subroutines of this proposed FEA procedure can be easily integrated as an add-on toolkit into ABAQUS which would provide a more user-friendly modeling environment. The feasibility of extending the proposed FEA procedure to two and three-dimensional pyrolyzing ablation problems will be investigated in our future work.
Dr Yeqing Wang
Syracuse University
Read the Original
This page is a summary of: Modeling of Pyrolyzing Ablation Problem with ABAQUS: A One-Dimensional Test Case, Journal of Thermophysics and Heat Transfer, November 2017, American Institute of Aeronautics and Astronautics (AIAA),
DOI: 10.2514/1.t5274.
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