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�������պ����ѧѧ�� 2009, Vol. 35 Issue (2) :151-153    DOI:
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Forming press and spring-back analysis of curving sandwich structure
Guan Shiwei*
School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

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Abstract�� Aiming at the mechanics problem during the manufacture process of curving sandwich structure, the changes of the bending stiffness were analyzed, the forming theories were explained and the calculation formulas of bending stiffness were found. By discussing the calculation method of the forming pressure about the microcurving rate curving sandwich structure and using the plate theory, the calculation formulas of the forming pressure about the microcurving rate curving sandwich structures, including the examples and the results were deduced. After discussing the calculation methods of the spring-back about the curving sandwich structures, the calculation formulas of the spring-back about the curving sandwich structures and the results of the calculation examples were presented. Based on the characteristics of the deformation about the common honeycomb, the flexibility honeycomb and the micro-turss structures, the principles of choosing the curving sandwich structures core were also presented.
Keywords�� sandwich plate   honey comb sandwich structure   form   spring-back     
Received 2008-07-20;
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About author: ����ΰ(1962-),��,����ʡ��������,������,guanshiwei@msn.com.
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����ΰ.����в�ṹ����ѹ���ͷ�������[J]  �������պ����ѧѧ��, 2009,V35(2): 151-153
Guan Shiwei.Forming press and spring-back analysis of curving sandwich structure[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2009,V35(2): 151-153
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