Identification of constitutive equations at very high strain rates ...

Identification of constitutive equations at very high strain rates using ...

These constitutive equations were applied and validated with experiments conducted at strain rates up to 1 0 5 s − 1 . However, the difficulty in determining ...

Identification of constitutive equations at very high strain rates using ...

A method coupling experiments and simulations, is developed to characterize the yield stress and strain hardening of several metals loaded at s and 25 ns.

Identification of constitutive equations at very high strain rates ... - HAL

A method coupling experiments and simulations, is developed to characterize the yield stress and strain hardening of several metals loaded at 10⁶ s−ⁱ and ...

Identification of constitutive equations at very high strain rates using ...

A method coupling experiments and simulations, is developed to characterize the yield stress and strain hardening of several metals loaded at 10⁶ s−ⁱ and ...

Identification of constitutive equations at very high strain rates using ...

Request PDF | Identification of constitutive equations at very high strain rates using shock wave produced by laser | A method coupling experiments and ...

[PDF] Identification of constitutive equations at very high strain rates ...

Semantic Scholar extracted view of "Identification of constitutive equations at very high strain rates using shock wave produced by laser" by R. Seddik et ...

(PDF) Identification of Constitutive Material Model Parameters for ...

This paper presents a methodology to determine deformation behavior of work materials in high-strain rate metal cutting conditions and utilizes evolutionary ...

Identification of Constitutive Material Model Parameters for High ...

This paper presents a methodology to determine deformation behavior of work materials in high-strain rate metal cutting conditions and utilizes evolutionary ...

CONSTITUTIVE EQUATIONS FOR DESCRIBING HIGH ... - OSTI.GOV

Cr—1 Mo steel to constant strain-rate loadings for a range of temperatures. The linear kinematic-hardening raodel presently adopted results in the use of ...

Identification of the Constitutive Parameters of Viscosity and ... - MDPI

The MTS [11] constitutive model can accurately reflect the change in the flow stress of the material at a high strain rate and can well express ...

Identification of Constitutive Material Model Parameters For High ...

fitting solutions. This methodology can also be extended to other constitutive material models. ... metal cutting, in which extremely high and localized strains, ...

Material constitutive behavior identification at high strain rates using ...

It permits to perform dynamic tests at very high strain rates exceeding the range of the traditional Split Hopkinson Pressure Bars and hence enable us to ...

Optimization-Based Constitutive Parameter Identification from ...

11. Johnson, G. R., and W. H.Cook, “A Constitutive Model and Data for Metals Subjected to Large Strains, High. Strain Rates and High Temperatures, ...

Inverse Identification of a Constitutive Model for High-Speed ... - MDPI

To adopt the constitutive model in Equation (26) for the LS-DYNA simulation, we used the piecewise linear plasticity material model, MAT-24, which interpolates ...

Simple Constitutive Equations for Steel at High Temperature

tonic loading conditions for a wide range of low strain rates (10³ to 10 s¯¹), high temperatures. (950 °C to 1400 °C), and varying carbon contents (0.005 to ...

Constitutive Equations for Describing the Hot Compressed Behavior ...

Because a constitutive equation can relate stress and strain to the related conditions of temperature and strain rate, it plays a crucial role ...

A High Strain Rate Constitutive Model for High Strength Steels

The equation requires only quasi-static data as the input and is capable of estimating flow stresses at high strain rates. The calculated stress ...

Strain-Rate-Dependent Constitutive Equations for Concrete

A statistical analysis was performed on the data and strain-rate-dependent constitutive equations, both for compression and tension, were developed. These ...

Inverse Identification at Very High Strain Rate of the Johnson-Cook ...

Several constitutive equations are available to describe the rate dependence of the material. Actually, at least three models are mostly adopted ...

Constitutive Equations of Yield Stress Sensitivity to Strain Rate of ...

In order to obtain the best material constants for each constitutive equation, we need to optimize a cost function fχ. This cost function is ...