A Structural Analysis of Semi-Monocoque Car Bodies

抄録

The purpose of this paper is to develop a practical method of stress and deformation analysis of body structures such as sedans and station wagons subjected to bending or twisting loads. Many of these are reinforced shell structures, the so-called"semi-monocoque"type of construction, but they contain relatively enormous structural"cut-outs"(such as door and window openings). In conducting research, an attempt is made to analyze the car body as a structure consisting of rigid frame parts and reinforced shells both components being rigidly jointed. The matrix method of structural analysis is used and the calculations are carried out on the digital computer IBM 7074. In order to check the validity of the present method, experiments are carried out on two-and three-dimensional models. Comparison between the calculated results and the tests indicates that the agreement of stress and deflection is fairly good.