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�������պ����ѧѧ�� 2004, Vol. 30 Issue (02) :135-138    DOI:
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ԬӦ��, ¬����*
�������պ����ѧ ���տ�ѧ�빤��ѧԺ, ���� 100083
Cushioning properties of polyurethane syntactic foam
Yuan Yinglong, Lu Zixing*
School of Aeronautics Science and Technology, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

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Abstract�� Syntactic foam is a new kind of foamed polymer. It is very important to value its cushioning properties. On the basis of static and dynamic stress-strain curves of polyurethane syntactic foam, their cushioning curves were calculated and their cushioning properties were valued. The results show that the calculated minimum cushioning coefficients were almost the same in the case of static and dynamic loading. In addition, the effect of density and glass micro-spheres content of syntactic foam on the cushioning properties has been discussed at the same time.
Keywords�� mechanical properties   composite materials   foamed plastics   cushioning curve   syntactic foam     
Received 2002-10-18;

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About author: ԬӦ��(1977-),��,�Ĵ���,˶ʿ��, luzixing@263.net.
ԬӦ��, ¬����.������ĭ���ϵĻ��������о�[J]  �������պ����ѧѧ��, 2004,V30(02): 135-138
Yuan Yinglong, Lu Zixing.Cushioning properties of polyurethane syntactic foam[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2004,V30(02): 135-138
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