A mixed method of determining the thermal stress for cold roller

A mixed method which combines the recent developed finite analytical method and the boundary fitting coordinate transformation method was used first to calculate the temperature field and thermal stress field of the cold roller in this paper. The following results are obtained by the calculation: th...

Full description

Saved in:
Bibliographic Details
Published in:Journal of Central South University of Technology (China) 1997-11, Vol.4 (2), p.100-103
Main Authors: Li, Zhenzi, Wang, Hui, Zhou, Hongbin, Li, HuiJian
Format: Article
Language:English
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A mixed method which combines the recent developed finite analytical method and the boundary fitting coordinate transformation method was used first to calculate the temperature field and thermal stress field of the cold roller in this paper. The following results are obtained by the calculation: thermal stresses sigma sub r =0, sigma sub theta = sigma sub z are maximum tension stress on the inner surface of the cold roller and sigma sub r =0, (vert bar) sigma sub theta (vert bar) = (vert bar) sigma sub z (vert bar) are maximum compression stress on the outer surface of the cold roller in the steady and unsteady case. Effectiveness and validity of the mixed method are checked with steady cold roller problems having theoretical solutions. The results show that good agreement is achieved between the calculated value and theoretical solution, and the mixed method used in the paper is very workable. The mixed method is also useful in solving the steady and unsteady thermal stress field problems of the hot-rolled for the reversing rolling mill and the continuous rolling mill.
ISSN:1005-9784
1993-0666
DOI:10.1007/s11771-997-0007-2