Calculations of plastic collapse load of pressure vessel using FEA

作     者：Peng-fei LIU Jin-yang ZHENG Li MA Cun-jian MIAO Lin-lin WU 

作者机构：Institute of Chemical Machinery and Process Equipment Zhejiang University Hangzhou 310027 China 

基　　金：Project (Nos. 2006BAK04A02-02 and 2006BAK02B02-08) supported by the National Key Technology R&D Program  China 

出 版 物：《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 (浙江大学学报（英文版）A辑（应用物理与工程）)

年 卷 期：2008年第9卷第7期

页      码：900-906页

摘      要：This paper proposes a theoretical method using finite element analysis(FEA) to calculate the plastic collapse loads of pressure vessels under internal pressure,and compares the analytical methods according to three criteria stated in the ASME Boiler Pressure Vessel Code. First,a finite element technique using the arc-length algorithm and the restart analysis is developed to conduct the plastic collapse analysis of vessels,which includes the material and geometry non-linear properties of vessels. Second,as the mechanical properties of vessels are assumed to be elastic-perfectly plastic,the limit load analysis is performed by em-ploying the Newton-Raphson algorithm,while the limit pressure of vessels is obtained by the twice-elastic-slope method and the tangent intersection method respectively to avoid excessive deformation. Finally,the elastic stress analysis under working pressure is conducted and the stress strength of vessels is checked by sorting the stress results. The results are compared with those obtained by experiments and other existing models. This work provides a reference for the selection of the failure criteria and the calculation of the plastic collapse load.

主 题 词：压力容器 有限元法 塑性破坏荷载 分析设计 

学科分类：0810[工学-土木类] 080704[080704] 08[工学] 0807[工学-电子信息类] 0805[工学-能源动力学] 0812[工学-测绘类] 

核心收录：

D　O　I：10.1631/jzus.A0820023

馆 藏 号：203173444...