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�������պ����ѧѧ�� 2002, Vol. 28 Issue (1) :63-65    DOI:
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Analysis of Stress Intensity Factor of Interfacial Crack in TBC
YANG Xiao-guang, LIU Liu*
Beijing University of Aeronautics and Astronautics, Dept. of Propulsion

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Abstract�� The local collocation technique was used to evaluate the stress intensity factor of the interfacial crack. Combined with finite element method, it is used to compute the stress intensity factor of the interfacial crack between the ceramic coating and bond coating of thermal barrier coating under tensile load and thermal load. The stress intensity factor of the interfacial crack is complex, it includes the magnitude and phase angle, so the method to determine the K factor is different from traditional methods that are used to determine the K factors of homogeneous material. Finally, the results are discussed.
Keywords�� coats   finite elements   cracks   stress intensity factor     
Received 2000-05-19;
Fund:

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������, ����.�ֲ����÷����TBC��������Ӧ��ǿ�������о�[J]  �������պ����ѧѧ��, 2002,V28(1): 63-65
YANG Xiao-guang, LIU Liu.Analysis of Stress Intensity Factor of Interfacial Crack in TBC[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2002,V28(1): 63-65
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