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Thermodynamic dislocation theory: Application to bcc-crystals
Published 10 Jul 2020 in cond-mat.mtrl-sci | (2007.05429v1)
Abstract: This paper presents the thermodynamic dislocation theory containing several modifications over its first version which was originally proposed by Langer, Bouchbinder, and Lookman (2010). Employing a small set of physics-based material parameters identified by the large scale least squares analysis, we show that the theory can fit the stress-strain curves of bcc crystals niobium, tantalum, tungsten, and vanadium over a wide range of temperatures and strain rates.
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