Limit stress analysis for thick-wall cylinder based on tri-parameter and twin τ2 strength theory
CHEN Si-li
LI Yan-yu
ZHANG Jing-yu
Abstract：In order to obtain the unitive analytical solution of whole elastic-plastic analysis process for the thick-wall cylinder prepared by two materials with the same tensile and compressive strengths as well as the different tensile and compressive strengths under the effect of uniformly distributed load,the elastic-plastic stress analysis for the thick-wall cylinder was carried out with the tri-parameter and twin τ2 strength theory. Through quoting the limit stress ratio αand βin the tri-parameter twin τ2 strength theory,the uniform analysis for the materials with the same tensile and compressive strengths as well as the different tensile and compressive strengths were performed.In addition,the elastic limit pressure and elastic-plastic limit pressure as well as the relationship between the stress in the elastic and plastic zone,limit stress ratio αand βof materials and elastic-plastic radius were obtained,respectively.The results show that not only the material limit stress σt,limit stress ratio αand βhave certain influence on the ultimate bearing capacity of thick-wall cylinder,but also the limit pressure of thick-wall cylinder is associated with its inside and outside radius.
Keywords：uniformly distributed loadanalytical solutionthick-wall cylinderlimit stress ratioelastic-plastic stresselastic limit pressureelastic-plastic limit pressure
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 555-559 )