%A
%T ANALYSIS OF ELASTIC COLLAPSING OF PERFORATED CASING
%0 Journal Article
%D 2004
%J Mechanics in Engineering
%R 10.6052/1000-0992-2003-082
%P 0-0
%V 26
%N 3
%U {http://lxsj.cstam.org.cn/CN/abstract/article_136515.shtml}
%8 2004-06-10
%X The perforated casing is more vulnerable
to collapse under external pressure than that without perforates. This paper gives the
elastic differential equation of collapse of perforated casing, and a general
formula for reduction factor of elastic collapsing by perturbation method.
Compared with the exact solution of square holes, the perturbation
ones are of high precision for elastic collapsing of perforated casing.