DEFLECTION SOLUTIONS OF A SPHERICAL MEMBRANE SHELL UNDER A POINT LOAD
The action of concentrated loads on spherical shell has been widely studied. The solution for a concentrated normal force was first obtained by Reissner in 1946 by using the classical theory of shallow shells. This problem was also considered by Timoshenko (1946), Lukasiewicz (1979), Koiter (1963), Young (1989) etc. In deriving these solutions, it is assumed that the stresses and displacements are very small at some distance from the loading point. In this paper, the displacement of non-shallow spherical membrane shell under a concentrated load has been considered. Appling the above all kinds of methods, the deflections under the point of application of concentrated loads on spherical membrane shells with R/t=10～50 and R/t=100～500 have been calculated. The results are analyzed and all kinds of methods are compared, the calculation precisions and covering ranges of all kinds of methods are discussed.
spherical membrane shell point load non-shallow spherical shell calculation precisions covering ranges
Xing Wang Fan Wang
School of Architecture and Civil Engineering, Ningbo University of Technology, Ningbo 315211, P.R. China
国际会议
广州
英文
798-801
2009-11-28（万方平台首次上网日期，不代表论文的发表时间）