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High Strain-Rate Material Model Validation for Laser Peening Simulation [PDF]

open access: yesThe Journal of Engineering, 2015
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]

open access: yesMechanics of Materials, 2013
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]

open access: yes, 2015
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

Dynamic constitutive relationship of CuCrZr alloy based on Johnson-Cook model

open access: yesNuclear Materials and Energy, 2020
CuCrZr alloy has been acknowledged as one of the most promising candidate materials for the heat sink of plasma facing components in nuclear fusion devices with its excellent thermal conductivity and specific mechanical strength.
Xinyuan Qian   +8 more
doaj   +2 more sources

A thermodynamically consistent formulation of the Johnson–Cook model

open access: yesMechanics of Materials, 2020
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.
openaire   +5 more sources

Numerical and experimental investigation of Johnson–Cook material models for aluminum (Al 6061-T6) alloy using orthogonal machining approach

open access: yesAdvances in Mechanical Engineering, 2018
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.
Sohail Akram   +5 more
doaj   +2 more sources

Identification of Johnson-Cook material model parameters for laser shock peening process simulation for AA2024, Ti–6Al–4V and Inconel 718

open access: yesJournal of Materials Research and Technology
This paper addresses the identification of Johnson-Cook material model parameters for the simulation of high strain rate processes such as laser shock peening.
Ruslan Kuliiev   +2 more
doaj   +3 more sources

Dynamic constitutive relationship of TiZrHfCu0.5 high entropy alloy based on Johnson-Cook model

open access: yesJournal of Materials Research and Technology, 2023
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

open access: yesJournal of Aeronautical Materials, 2023
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

open access: yesMetals, 2023
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

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