Determination of Interfacial Adhesion Energies of Thermal Barrier Coatings by Compression Test Combined with a Cohesive Zone Finite Element Model
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- 英文论文题名：Determination of Interfacial Adhesion Energies of Thermal Barrier Coatings by Compression Test Combined with a Cohesive Zone Finite Element Model
- 论文作者：朱旺 ; 杨丽 ; GUO J W ; 周益春 ; LU C
- 英文论文作者：ZHU W ; YANG L ; GUO J W ; ZHOU Y C ; LU C ; Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education ; School of Materials Science and Engineering ; Xiangtan University ; Faculty of Materials ; Optoelectronics and Physics ; Xiangtan University ; School of Mechanical Engineering ; Xiangtan University ; Department of Mechanical Engineering ; Curtin University
- 年：2016
- 作者机构：Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education,School of Materials Science and Engineering,Xiangtan University;Faculty of Materials,Optoelectronics and Physics,Xiangtan University;School of Mechanical Engineering,Xiangtan University;Department of Mechanical Engineering,Curtin University;
- 英文论文关键词：interfacial adhesion energy ; thermal barrier coatings ; compression tests ; edge delamination ; cohesive zone model
- 会议召开时间：2016-09-27
- 会议录名称：第十四届全国物理力学学术会议缩编文集
- 语种：英文
- 分类号：O485
- 学会代码：AGLU
- 会议名称：第十四届全国物理力学学术会议
- 会议地点：中国四川绵阳
- 主办单位：中国力学学会物理力学专业委员会
- 学会名称：中国力学学会
- 页数：1
- 文件大小：34k
- 原文格式：O
- 会议级别：全国
摘要
Determination of interfacial adhesion energies of thermal barrier coatings(TBCs) is very important for understanding the failure mechanism and predicting the life of TBCs.Combined the compression test with cohesive zone finite element method(FEM),the interfacial adhesion energy is determined.It is found that the critical interfacial adhesion energy is 120 J/m~2 and the corresponding loading phase angle is-56°.With the increase of half-length of crack,the crack propagation tends to steady-state,and the steady-state interface energy release rate reaches 150 J/m~2,edge delamination experiences almost pure mode Ⅱ.The results are good agreement with the FEM simulation results and the values available in the literatures determined by different test methods,which confirms the validity of the method used in this study.
Determination of interfacial adhesion energies of thermal barrier coatings(TBCs) is very important for understanding the failure mechanism and predicting the life of TBCs.Combined the compression test with cohesive zone finite element method(FEM),the interfacial adhesion energy is determined.It is found that the critical interfacial adhesion energy is 120 J/m~2 and the corresponding loading phase angle is-56°.With the increase of half-length of crack,the crack propagation tends to steady-state,and the steady-state interface energy release rate reaches 150 J/m~2,edge delamination experiences almost pure mode Ⅱ.The results are good agreement with the FEM simulation results and the values available in the literatures determined by different test methods,which confirms the validity of the method used in this study.
Determination of interfacial adhesion energies of thermal barrier coatings(TBCs) is very important for understanding the failure mechanism and predicting the life of TBCs.Combined the compression test with cohesive zone finite element method(FEM),the interfacial adhesion energy is determined.It is found that the critical interfacial adhesion energy is 120 J/m~2 and the corresponding loading phase angle is-56°.With the increase of half-length of crack,the crack propagation tends to steady-state,and the steady-state interface energy release rate reaches 150 J/m~2,edge delamination experiences almost pure mode Ⅱ.The results are good agreement with the FEM simulation results and the values available in the literatures determined by different test methods,which confirms the validity of the method used in this study.
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