Numerical Simulation Procedure for Modeling TGO Crack Propagation and TGO Growth in Thermal Barrier Coatings upon Thermal-Mechanical Cycling
Joint Authors
Ding, Jun
Huang, Xia
E-Chuan, Yang
Chen, Song
Source
Advances in Materials Science and Engineering
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-08-21
Country of Publication
Egypt
No. of Pages
14
Abstract EN
This paper reports a numerical simulation procedure to model crack propagation in TGO layer and TGO growth near a surface groove in metal substrate upon multiple thermal-mechanical cycles.
The material property change method is employed to model TGO formation cycle by cycle, and the creep properties for constituent materials are also incorporated.
Two columns of repeated nodes are placed along the interface of the potential crack, and these nodes are bonded together as one node at a geometrical location.
In terms of critical crack opening displacement criterion, onset of crack propagation in TGO layer has been determined by finite element analyses in comparison with that without predefined crack.
Then, according to the results from the previous analyses, the input values for the critical failure parameters for the subsequent analyses can be decided.
The robust capabilities of restart analysis in ABAQUS help to implement the overall simulation for TGO crack propagation.
The comparison of the TGO final deformation profile between numerical and experimental observation shows a good agreement indicating the correctness and effectiveness of the present procedure, which can guide the prediction of the failure in TGO for the future design and optimization for TBC system.
American Psychological Association (APA)
Ding, Jun& Huang, Xia& Chen, Song& E-Chuan, Yang. 2014. Numerical Simulation Procedure for Modeling TGO Crack Propagation and TGO Growth in Thermal Barrier Coatings upon Thermal-Mechanical Cycling. Advances in Materials Science and Engineering،Vol. 2014, no. 2014, pp.1-14.
https://search.emarefa.net/detail/BIM-1034267
Modern Language Association (MLA)
Ding, Jun…[et al.]. Numerical Simulation Procedure for Modeling TGO Crack Propagation and TGO Growth in Thermal Barrier Coatings upon Thermal-Mechanical Cycling. Advances in Materials Science and Engineering No. 2014 (2014), pp.1-14.
https://search.emarefa.net/detail/BIM-1034267
American Medical Association (AMA)
Ding, Jun& Huang, Xia& Chen, Song& E-Chuan, Yang. Numerical Simulation Procedure for Modeling TGO Crack Propagation and TGO Growth in Thermal Barrier Coatings upon Thermal-Mechanical Cycling. Advances in Materials Science and Engineering. 2014. Vol. 2014, no. 2014, pp.1-14.
https://search.emarefa.net/detail/BIM-1034267
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1034267