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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 32
DEVELOPMENTS IN COMPUTATIONAL TECHNIQUES FOR CIVIL ENGINEERING
Edited by: B.H.V. Topping
Paper VI.4

The Effect of Thermal Properties and Weld Efficiency on Transient Temperatures During Welding

G.H. Little and A.G. Kamtekar

School of Civil Engineering, The University of Birmingham, Birmingham, UK

Full Bibliographic Reference for this paper
G.H. Little, A.G. Kamtekar, "The Effect of Thermal Properties and Weld Efficiency on Transient Temperatures During Welding", in B.H.V. Topping, (Editor), "Developments in Computational Techniques for Civil Engineering", Civil-Comp Press, Edinburgh, UK, pp 137-145, 1995. doi:10.4203/ccp.32.6.4
Abstract
A new finite element program that has been developed for performing non-linear calculations for determining the transient temperatures that develop in welded plates efficiently and accurately is used to examine the effects of variations in thermal conductivity and weld efficiency, and of different ways of modelling the heat exchange between the plate and its surroundings, on the computed temperature distributions. It is found that: (i) the value chosen for the conductivity has a significant effect, (ii) the value chosen for the efficiency has a greater effect on the peak temperatures when the weld is deposited using a high heat input than it does when a low heat input is used and (iii) modelling the heat exchange between the plate and its surroundings in different ways has a negligible effect on the calculated transient temperatures. Finally, a set of parameters that could be used to present the results in non-dimensional form is identified. Preliminary results look promising.

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