| 4 | Formulation of elastic multi-structures显示文摘Based on the creative and groundbreaking work done by Feng and Shi, some further work has been carried out comprehensively by the first author on the formulation of elastic multi-structures. The main contribution of this paper can be summarized as follows: The work of Feng and Shi has been extended to an elastic multi-structures with nonlinear structural element: shell in both linear and nonlinear case. Three general combinations of multi-structures have been formulated, that is, Case 1: linear elements of 3-D body, 1-D bar/beam, 2-D plates and 2-D shell; Case 2: nonlinear elements of 3-D body, 1-D bar/beam, 2-D plates and 2-D shell; and Case 3: the linear-nonlinear mix problem of 3-D body (nonlinear), 1-D bar/beam (linear), 2-D plates (linear) and 2-D shell (linear). From the investigation, it has proved that the higher dimensional element will have a strong influence on the lower one with the inner linkage boundaries, and also proved that solution uniqueness of elastic multi-structures is different from a single 3-D body. | SUN BoHua1 & YE ZhiMing2 1 Department of Mechanical Engineering, Cape Peninsula University of Technology, P O Box 1906, Bellville 7535, Cape Town, South Africa 2 Shanghai University, Shanghai 200436, China | 2009 | Science China(Physics,Mechanics & Astronomy)2009，52，6： | 0 |
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