Modified Steinberg–Guinan elasticity model to describe softening–hardening dual anomaly in vanadium
Hao Wang,
Yuan-Chao Gan,
Xiang-Rong Chen
et al.
Abstract:Constitutive models are essential for describing the mechanical behavior of materials under high temperatures and pressures, among which the Steinberg–Guinan (SG) model is widely adopted. Recent work has discovered a peculiar dual anomaly of compression-induced softening and heating-induced hardening in the elasticity of compressed vanadium [Phys. Rev. B 104, 134102 (2021)], which is beyond the capability of the SG model to describe. In this work, a modified SG elasticity constitutive model is proposed to embo… Show more
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