文献类型：期刊文献

英文题名：A direct approach to progressive buckling design considering ratcheting deformation

作者：Liu, Fang[1];Gong, Jian-Guo[1];Chen, Haofeng[1,2];Xuan, Fu-Zhen[1]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, Key Lab Pressure Syst & Safety, Shanghai 200237, Peoples R China;[2]Univ Strathclyde, Dept Mech & Aerosp Engn, Glasgow G1 1XJ, Lanark, Scotland

年份：2021

卷号：163

外文期刊名：THIN-WALLED STRUCTURES

收录：;EI(收录号：20211310155713);WOS:【SCI-EXPANDED(收录号:WOS:000649685800002)】；

基金：The authors gratefully acknowledge the supports from the China Scholarship Council, National Natural Science Foundation of China (51828501, 51835503) , the Higher Education Discipline Innovation Project (111 Project), China under the funding code B13020, University of Strathclyde, UK and East China University of Science and Technology during the course of this work. All authors have seen and approved the final version of the manuscript being submitted.

语种：英文

外文关键词：Bree diagram; Direct approach; Progressive buckling; Ratcheting deformation; Linear Matching Method

摘要：In this paper, the Bree diagram is extended to consider the progressive buckling failure and a direct approach for structural progressive buckling design considering ratcheting deformation is developed. Firstly, the progressive buckling mechanism of structures subjected to the combination of constant and cyclic loadings is sufficiently discussed. Then, a two-stage direct approach is developed based on the Linear Matching Method and nonlinear buckling analysis, which can generate progressive buckling design curves in the extended Bree diagram. To illustrate the application of the direct approach to progressive buckling design, a cylindrical shell model with an opening is provided as a numerical example. Furthermore, geometrical effects, e.g. the opening size and the shell thickness, on the progressive buckling limit are investigated. Formulas for progressive buckling design of cylindrical shells with various geometrical parameters are derived by fitting curves. Compared with other methods, the direct approach could predict accurate progressive buckling load.