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Showing 1 to 4 of 4 for “"Zerilli-Armstrong"”.
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ULTRA-HIGH STRAIN RATE CONSTITUTIVE MODELING OF PURE TITANIUM USING PARTICLE IMPACT TEST
… two constitutive equations: Johnson-Cook and Zerilli-Armstrong. We show that titanium microparticles experience strain rates in the range of 10^6-10^10 s^-1 upon impact. We evaluate the capability of the Johnson-Cook and Zerilli-Armstrong equations in predicting material response at ultra-high …
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Implementation of material models for high strain rate applications as user-subroutines in abaqus/explicit
… and verification of the Johnson-Cook and Zerilli-Armstrong material models as VUMATs. The same version of the Johnson-Cook material model is contained in Abaqus and was therefore used as a benchmark. These material models are suitable for high strain, high strain rate and high temperature …
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Modeling and Simulation of Viscoplasticity, Recrystallization, and Softening of Alloyed Steel During Hot Rolling Process
… models including a Johnson-Cook (JC) model, a Zerilli-Armstrong (ZA) model, and a combined JC and ZA model were developed. Dynamic recrystallization behavior was investigated and modeled based on single hot compression test. Work hardening rate curve and dynamic recovery curve were modeled to …
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The Constitutive Behavior of Copper at High Strain Rate as Determined by the Free Expansion Ring Test
… of the material at this stage. Johnson Cook and Zerilli Armstrong constitutive models are fitted to the experimental data and it can be concluded that one constitutive law is unable to describe the nature of the material in the conditions present in this technique.