Results 11 to 20 of about 32,785 (302)
Estimating Johnson-Cook Material Parameters using Neural Networks
Procedia Manufacturing, 2021 Abstract The five-parameter Johnson-Cook (J-C) material model represents the behavior of a material under extreme mechanical loading, including high temperatures, strains, and strain rates. The goal of this study is to estimate five J-C material parameters and chip thickness jointly for a given set of force components, power, and temperature.
Nesar Ahmed Titu +6 more
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Metals, 2022 In current industrial practice, the finite element modeling of the metal cutting process is essential. In this paper, finite element analysis of conventional and high-speed cutting of 7075-T6 aluminum alloy is carried out.
Zhijie Wang +5 more
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Crystals, 2023 To study the deformation and fracture mechanism of 6061 aluminum alloy extruded pipe after secondary heat treatment under different stress triaxiality, a Johnson–Cook failure model was developed.
Tengjiao Hong +5 more
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Metals, 2020 This work focuses on the hot deformation behavior and constitutive models of Ti6Al4V alloy manufactured by directed energy deposition laser (DEDL). The hot compression tests of DEDL Ti6Al4V alloy at deformation temperature of 700–950 °C and strain rate ...
Yong Niu +3 more
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Dynamic constitutive relationship of CuCrZr alloy based on Johnson-Cook model
Nuclear 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
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Metals, 2023 The Johnson–Cook model is widely used because of its ability to meet the simulation material requirements in various situations. However, under different working conditions, the accuracy of the model may have errors. In this work, based on Abaqus (Abaqus
Danqing Yin +5 more
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Implementation of Johnson–Cook model in EFES program software [PDF]
AIP Conference Proceedings, 2018 The article presents the results of approbation of a numerical method for calculating metallic materials under dynamic loading. The mathematical model of the materials behavior, proposed by G. Johnson and W. Cook, was used. This model takes into account the accumulation of damage in the material and describes well the metals fracture under high ...
A. V. Radchenko +3 more
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OPTIMIZATION OF JOHNSON-COOK CONSTITUTIVE MODEL PARAMETERS
Journal of Machine Engineering, 2019 In modern machining industry, the concept of process optimization has gained widespread recognition. FEM simulations are commonly used for the optimization of machining operations, allowing for a proper choice of tool geometry and process parameters to obtain results that are in accordance with end user criteria.
Piotr LÖSCHNER +2 more
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Crystals, 2023 This study presents an exploration of the flow stress constitutive model and the deformation mechanism of Nb521, both critical for its practical application.
Baohui Zhu +3 more
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Numerical simulations of impact behaviour of thin steel plates subjected to cylindrical, conical and hemispherical non-deformable projectiles [PDF]
, 2008 In this paper, a numerical study of normal perforation of thin steel plates impacted by different projectile shapes is reported. The numerical simulations of this problem have been performed using a finite element code, ABAQUS-Explicit with a fixed and ...
Arias Hernández, Ángel +2 more
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