NUMERICAL LIMIT ANALYSIS OF CYLINDRICAL-SHELLS WITH PART-THROUGH SLOTS

被引：17

作者：

LIU, YH

CEN, ZZ

XU, BY

机构：

[1] Department of Engineering Mechanics, Tsinghua University, Beijing

来源：

INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING | 1995年 / 64卷 / 01期

关键词：

D O I：

10.1016/0308-0161(94)00071-P

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A numerical limit analysis is performed for cylindrical shells with part-through slots using a general computational method for limit analysis of 3-D structures. The upper bounds for the limit pressures are given for a comprehensive range of geometric parameters. Some of the calculated results are compared with the results of detailed 3-D elastoplastic finite element analysis and where possible, with existing theoretical, experimental or numerical solutions. The effect of various shapes and sizes of part-through slots on the load-carrying capacity of cylindrical shells is investigated and evaluated. Two kinds of typical failure modes corresponding to different dimensions of slots are studied. Based on the numerical results, a geometric parameter G which combines the slot dimensions and the cylinder geometry is presented, It reflects reasonably the overall effect of slot on the limit load of a cylinder. An empirical formula for estimating the limit pressure of a cylindrical shell with part-through slot is obtained.

引用

页码：73 / 82

页数：10

共 9 条

[1] Miller, Review of limit loads of structures containing defects, Int. J. Pres. Ves. and Piping, 32, pp. 197-327, (1988)
[2] Wu, Huang, Chen, A study of the limit pressures of thick-walled pipes with part-through slots on the outside surface, Int. J. Pres. Ves. and Piping, 20, pp. 207-221, (1985)
[3] Kitching, Zarrabi, Lower bound to limit pressure for cylindrical shell with part-through slot, Int. J. Mech. Sci., 23, pp. 31-48, (1981)
[4] Kitching, Zarrabi, Limit and burst pressures for cylindrical shells with part-through slots, Int. J. Pres. Ves. and Piping, 10, pp. 235-270, (1982)
[5] Ruiz, Ductile growth of a longitudinal flaw in a cylindrical shell under internal pressure, Int. J. Mech. Sci., 20, pp. 277-281, (1978)
[6] Kitching, Davis, Gill, Limit pressures for cylindrical shells with unreinforced openings of various shapes, ARCHIVE: Journal of Mechanical Engineering Science 1959-1982 (vols 1-23), 12, 5, pp. 313-330, (1970)
[7] Dowling, Townley, The effects of defects on structural failure: a two-criteria approach, Int. J. Pres. Vess. and Piping, 3, pp. 77-107, (1975)
[8] Milne, Ainsworth, Dowling, Stewart, R/H/R6-Rev. 3, Assessment of the Integrity of Structures Containing Defects, (1986)
[9] Ewing, TPRD/L/MT0257/84, PLCLIB: A Program to Calculate Plastic Collapse Loads for Spherical Shells with Set-through Nozzles having Axisymmetric Defects, (1984)

← 1 →