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�������պ����ѧѧ�� 2012, Vol. Issue (7) :947-952    DOI:
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T300/QY8911�����ʪ������ģ�������˷���
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Hygrothermal properties simulation and damage analysis of T300/QY8911 undirectional laminates
Qi Zhongxin, Yan Ying, Liu Yujia, He Mingze*
School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

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Abstract�� Flexural properties of T300/QY8911 undirectional laminates were tested under different hygrothermal conditions. Finite element models of composite undirectional laminates under hygrothermal conditions were built. The flexural properties of T300/QY8911 undirectional laminates tested in experimentation were simulated. Plus, a damage evolution simulation module of composite was developed. The integrated damage evolution process of T300/QY8911 undirectional laminates under hygrothermal conditions was simulated. Results show that, the flexural modulus of T300/QY8911 undirectional laminates remains unchanged under different hygrothermal conditions, but the flexural strength changes greatly with conditions. For flexural modulus, the error between simulation values and test results is less than 6%, and for flexural strength, it is less than 2%. The finite element models can predict flexural properties of composite undirectional laminates under different hygrothermal conditions relative exactly.
Keywords�� undirectional laminates   hygrothermal conditions   flexural properties   damage evolution   progressive failure     
Received 2011-04-14;
Fund:����973�ƻ�������Ŀ(2011CB606105)
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������, ����, �����, ������.T300/QY8911�����ʪ������ģ�������˷���[J]  �������պ����ѧѧ��, 2012,V(7): 947-952
Qi Zhongxin, Yan Ying, Liu Yujia, He Mingze.Hygrothermal properties simulation and damage analysis of T300/QY8911 undirectional laminates[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2012,V(7): 947-952
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http://bhxb.buaa.edu.cn//CN/     ��     http://bhxb.buaa.edu.cn//CN/Y2012/V/I7/947
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