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《Mechanics in Engineering》 2006-01
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WEI Demin CHEN Yuqing College of Architecture & Civil Engineering, South China University of Technology, Guangzhou 510640, China  
The ultimate bearing capacity of curved beams is related with the bending-torsion strength and the stability. With elastic-plastic deformation, the bending stress and the torsion stress are not linear with respect to the strain, so the problem will be more complicated. In this paper, using different formulae of the ultimate capacity of curved beams, a regression model is obtained. Through the nonlinear regression Calculation for a lot of computational results obtained by using the finite element method, a simplified and useful calculation formula is proposed, which can be used in the practical design of the curved beams.
【Fund】: 国家自然科学基金项目(10272046)资助.
【CateGory Index】: O347
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