Steady-state creep analysis of thick-walled spherical pressure vessels with varying creep properties

Authors: You, L.H. and Ou, H.

Journal: Journal of Pressure Vessel Technology, Transactions of the ASME

Volume: 130

Issue: 1

Pages: 0145011-0145015

ISSN: 0094-9930

DOI: 10.1115/1.2826452

Abstract:

Based on basic equations of steady-state creep of spherically symmetric problems, a simple and efficient iterative method is proposed in this paper to determine creep deformations and stresses in thick-walled spherical vessels with varying creep properties subjected to internal pressure. The convergence of the proposed iterative method and the influences of varying and constant material properties on stresses and equivalent strain rate are discussed. How different material parameters involved in Norton's law affect radial and circumferential stresses together with the equivalent strain rate in thick-walled spherical vessels under internal pressure is investigated. Copyright © 2008 by ASME.

Source: Scopus

Preferred by: Lihua You