High Strain-Rate Material Model Validation for Laser Peening Simulation [PDF]
Finite element modeling can be a powerful tool for predicting residual stresses induced by laser peening; however the sign and magnitude of the stress predictions depend strongly on how the material model captures the high strain rate response.
Kristina Langer +5 more
doaj +4 more sources
Calorimetric consequences of thermal softening in Johnson–Cook’s model [PDF]
At high loading rates, the development of adiabatic shear bands in metals is conventionally attributed to the strong interactions induced by viscoplastic dissipation within the bands and thermal softening effects.
CHRYSOCHOOS, André, RANC, Nicolas
core +7 more sources
Testing of Johnson-Cook material model VPJC in EUROPLEXUS [PDF]
This document presents some numerical tests for the verification of the Johnson-Cook material model *VPJC) recently introduced in the EUROPLEXUS code (EPX).JRC.G.4-European laboratory for structural ...
AUNE Vegard +3 more
core +3 more sources
This research focuses on the study of the effects of processing conditions on the Johnson–Cook material model parameters for orthogonal machining of aluminum (Al 6061-T6) alloy.
Mushtaq Khan +2 more
exaly +2 more sources
A thermodynamically consistent formulation of the Johnson–Cook model
Abstract The model of Johnson and Cook, which includes a viscoplastic flow rule and a damage criterion, is widely used to describe the mechanical behaviour of metallic materials subjected to severe loading conditions, such as those encountered during fabrication operations or impact.
exaly +4 more sources
Determination of Johnson–Cook Constitutive Parameters for Cutting Simulations [PDF]
The Johnson–Cook constitutive equation is very widely used for simulating cutting processes. Different methods are applied for establishing parameters of the constitutive equation.
Michael Storchak +3 more
doaj +2 more sources
On the Prediction of the Flow Behavior of Metals and Alloys at a Wide Range of Temperatures and Strain Rates Using Johnson–Cook and Modified Johnson–Cook-Based Models: A Review [PDF]
Abdallah Shokry +2 more
exaly +2 more sources
Dynamic constitutive relationship of TiZrHfCu0.5 high entropy alloy based on Johnson-Cook model
High entropy alloy has attracted much attention in the field of national defense due to their excellent low-temperature dynamic mechanical properties.
Chuang Chen +3 more
doaj +1 more source
Dynamic constitutive model of titanium alloy Ti-6Al-4V for high speed cutting: a review
High speed cutting is an effective technique to achieve high efficiency and high quality machining of titanium alloy and other difficult materials.
JIANG Ziwei, YANG Dong, CHEN Jianbin
doaj +1 more source
Prediction of Hot Formability of AA7075 Aluminum Alloy Sheet
A uniaxial high-temperature tensile test of an AA7075 aluminum alloy sheet was conducted using an established induction heating test system. Five different types of specimens were designed to obtain the stress–strain curves at different forming ...
Heyuan Wang, Xiaolong Sui, Yingping Guan
doaj +1 more source

