Simulation of oxide growth in thermal barrier coating based on optimal transport meshless method

被引：0
|
作者：
Xu H. [1 ]
Fan J. [1 ]
Jing F. [2 ]
Liao H. [1 ]
Li B. [3 ]
Fan Z. [4 ]
机构：
[1] School of Energy and Power Engineering, Beihang University, Beijing
[2] Aero Engine Academy of China, Aero Engine Corporation of China, Beijing
[3] College of Engineering, Peking University, Beijing
[4] Yunyi Supercomputing (Beijing) Software Technology Company, Beijing
来源：
Hangkong Dongli Xuebao/Journal of Aerospace Power | 2022年 / 37卷 / 10期
关键词：
large deformation; meshless method; shape function; thermal barrier coating; thermal cycling;
D O I：
10.13224/j.cnki.jasp.20220239
中图分类号：
学科分类号：
摘要：
Under the self-developed optimal transport meshless (OTM) framework, a thickness growth algorithm was developed and the anisotropic oxidation growth process of thermal oxide layer (TGO) was simulated. Using this method, the typical transition section of TGO layer was taken as an object to study the change of stress and displacement under thermal cycling load. The simulation results coincided with the test. The results showed that this method can well simulate the wrinkle phenomenon in the process of interface growth. Compared with the finite element method, the deformation of the element was uniform, making it suitable for numerical simulation of the growth process of TGO. The maximum stress of the thermal barrier coating mainly occurred at the convex position, and the lateral change of the convex position had a tendency to aggravate the large deformation of the oxide layer interface. © 2022 BUAA Press. All rights reserved.
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页码：2104 / 2111
页数：7
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