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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]
Materials, 2023 This paper reviews the flow behavior and mathematical modeling of various metals and alloys at a wide range of temperatures and strain rates. Furthermore, it discusses the effects of strain rate and temperature on flow behavior. Johnson–Cook is a strong phenomenological model that has been used extensively for predictions of the flow behaviors of ...
Abdallah Shokry +2 more
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A thermodynamically consistent formulation of the Johnson–Cook model
Mechanics 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.
Charles Mareau
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Calorimetric consequences of thermal softening in Johnson–Cook’s model [PDF]
Mechanics 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. The rheological equation proposed by Johnson and Cook takes both viscoplastic hardening and thermal softening into account.
Ranc, Nicolas, Chrysochoos, André
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The Johnson-Cook Constitutive Model of TA19 Titanium Alloy
Journal of Physics: Conference Series, 2023 Abstract In order to obtain the stress-strain relationship of the TA19 titanium at 10−3 s−1 to 4100 s−1 strain rates, a quasi-static tests and a Split Hopkinson Bar were performed at room temperature. The Johnson-Cook model analyzed and the parameters in the constitutive equation are fitted according to the experimental data.
Wenting Tang, Changli Liu, Kaiming Zhang
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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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Incorporation of Material Variability in the Johnson Cook Model
Procedia Engineering, 2015 AbstractThe Johnson Cook (JC) material model is often used for modeling hypervelocity impacts (HVI) because it is capable of capturing high rate deformation and temperature effects. Within the JC model, material damage leading to fracture is aggregated using a path dependent damage parameter. Contributions to the damage parameter are calculated at each
Kupchella, Ryan +4 more
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Determination of Johnson–Cook Constitutive Parameters for Cutting Simulations [PDF]
Metals, 2019 The Johnson–Cook constitutive equation is very widely used for simulating cutting processes. Different methods are applied for establishing parameters of the constitutive equation. Based on the methods analysed in this study, two algorithms were worked out to determine the constitutive parameters for the prevailing conditions during cutting processes ...
Michael Storchak +3 more
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AIP Conference Proceedings, 2019 Titanium alloys such as Ti6Al4V are widely used and are well known as hard-to-machine material. The material behavior that is described by the constitutive equation plays a pivotal role in modeling and simulation of machining process. The Johnson–Cook material model is widely used for analysis of material flow stress, especially for those materials ...
Kugalur Palanisamy, Nithyaraaj +3 more
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Numerical Study of Deep Drawability Using Johnson-Cook Model
, 2022 In the Deep-drawing process, a blank is drawn into a hollow element taking the shape of a die by the operation of a punch. This process has numerous advantages and applications in the automobile, aerospace, kitchenware, and packaging industries. The primary purpose of this study is to design and simulate the deep drawing process in LS-Dyna PrePost(R ...
Bansal, Srijan +2 more
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