Steady-State Creep Analysis of Pressurized Pipe Weldments by Perturbation Method
Numerical Analysis
2009-06-15 v2 Analysis of PDEs
Abstract
The stress analysis of pressurized circumferential pipe weldments under steady state creep is considered. The creep response of the material is governed by Norton's law. Numerical and analytical solutions are obtained by means of perturbation method, the unperturbed solution corresponds to the stress field in a homogeneous pipe. The correction terms are treated as stresses defined with the help of an auxiliary linear elastic problem. Exact expressions for jumps of hoop and radial stresses at the interface are obtained. The proposed technique essentially simplifies parametric analysis of multi-material components.
Keywords
Cite
@article{arxiv.math/0505220,
title = {Steady-State Creep Analysis of Pressurized Pipe Weldments by Perturbation Method},
author = {A. Shutov and H. Altenbach and K. Naumenko},
journal= {arXiv preprint arXiv:math/0505220},
year = {2009}
}
Comments
17 pages, 6 figures