High‐temperature torsion of aluminum bars

High‐temperature torsion of aluminum bars

This paper studies high‐temperature torsion of aluminum bars within the simplified thermodynamic dislocation theory that ignores the excess dislocations. Employing a small set of physics‐based parameters, we are able to fit experimental torque‐twist curves for five different twist rates. The thermal...

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Bibliographic Details
Published in:Proceedings in applied mathematics and mechanics Vol. 19; no. 1
Main Authors: Piao, Yinguang, Le, Khanh Chau
Format: Journal Article
Language:English
Published: Berlin WILEY‐VCH Verlag 01-11-2019
Online Access:Get full text
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Summary:This paper studies high‐temperature torsion of aluminum bars within the simplified thermodynamic dislocation theory that ignores the excess dislocations. Employing a small set of physics‐based parameters, we are able to fit experimental torque‐twist curves for five different twist rates. The thermal softening effect is shown to be essential at high twist rates.
ISSN:1617-7061
1617-7061
DOI:10.1002/pamm.201900005