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�������պ����ѧѧ�� 2009, Vol. 35 Issue (8) :1018-1021    DOI:
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�� Ԩ1, ��־��1, ���²�1, ���촺2*
1. �������պ����ѧ ���տ�ѧ�빤��ѧԺ, ���� 100191;
2. �������պ����ѧ �ѧԺ, ���� 100191
Comparison between quasi-static indentation testing and drop-weight impact testing on delamination onset damage
Guo Yuan1, Guan Zhidong1, Liu Debo1, Meng Qingchun2*
1. School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;
2. School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

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Abstract�� To discuss the delamination onset load, quasi-static indentation tests and drop-weight impact tests were performed. The effects of the material and plying pattern on the delamination onset load were also studied. Moreover, the delamination threshold energy levels were found and the corresponding damage was analyzed. The results show that the delamination onset load increases along with the impact energy, and the delamination onset load in the quasi-static indentation is lower than in the low-velocity impact. Massive delamination happens in laminate panels when the energy reaches the delamination threshold energy, and the rigidity descends rapidly.
Keywords�� quasi-static indentation   low-velocity impact   delamination onset load     
Received 2008-06-19;
Fund:

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About author: �� Ԩ(1982-),��,ɽ���ӽ���,��ʿ��,guoyuan@ase.buaa.edu.cn.
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�� Ԩ, ��־��, ���²�, ���촺.���ϲ��Ͼ�ѹ�����䴸�����ʼ���˶Ա�����[J]  �������պ����ѧѧ��, 2009,V35(8): 1018-1021
Guo Yuan, Guan Zhidong, Liu Debo, Meng Qingchun.Comparison between quasi-static indentation testing and drop-weight impact testing on delamination onset damage[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2009,V35(8): 1018-1021
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