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A REVISED FORM FOR THE JOHNSON–COOK STRENGTH MODEL
International Journal of Impact Engineering, 1998Abstract Strength models play a key role in the numerical simulation of impact events. A revised form of the Johnson–Cook strength model is proposed in this paper. The revised model treats the sudden strengthening that many ductile metals exhibit at strain rates greater than 104/s.
WILLIAM K. RULE, S.E. Jones
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Determination of Johnson–Cook Parameters for Cast Aluminum Alloys
Journal of Engineering Materials and Technology, 2014A series of experiments were conducted to determine the Johnson–Cook parameters for three different cast aluminum alloys, namely, A356, A357, and F357. Room temperature compression experiments were performed under varying rates of loading ranging from 10−3 s−1 to 5000 s−1.
Gupta, Sachin +2 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 ...
Nithyaraaj Kugalur-Palanisamy +3 more
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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 ...
Nithyaraaj Kugalur-Palanisamy +3 more
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Inverse Identification of Johnson-Cook Material Parameters from Machining Simulations
Advanced Materials Research, 2011A material model is a prerequisite to the modelling of machining processes. Owing to its versatility, the Johnson-Cook model is commonly used for machining simulations. Determination of the model parameters from experiments is challenging due to the large variations of strains, strain-rates and temperatures which lead to several problems.
Aviral Shrot, Martin Bäker
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Parameters Identification of Johnson-Cook Constitutive Equation for Aluminum Brass
Advanced Materials Research, 2014Aluminum brass HAL66-6-3-2 is abrasion-resistant alloy with high strength, hardness and wear resistance, corrosion resistance is also well, commonly used in the field of marine and ordnance industry. The quasi static and dynamic mechanical properties were tested through the use of electronic universal testing machine and Split Hopkinson Tension Bar ...
Chang Chun Di +3 more
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Modified Johnson–Cook material flow model for hot deformation processing
Journal of Materials Science, 2010The need of a generalised flow curves considering strain (e), strain rate (\( \dot{\varepsilon } \)) and temperature (T) is a primary requirement for material modelling related to several conventional and strategic mechanical processing to meet critical and non-critical engineering applications.
Amit Kumar Maheshwari +3 more
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Study on Calibration for Parameters of Johnson-Cook Constitutive Equation
Advanced Materials Research, 2011Procedure of determination for parameters of Johnson-Cook model, which is widely used in numerical computation and design for manufacture process, is made. The paper describes fundamental investigation of Johnson-Cook constitutive equation firstly, then quasi-static compression experiment MTS is reviewed briefly, and dynamic compression experiment SHPB
Jian Guang Li, Jie Dong Cao
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The Johnson Cook model for the machinability study
Materials Today: Proceedings, 2023Aby M. Philip, Kalyan Chakraborty
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Johnson - Cook Strength Models for Mild and DP 590 Steels
AIP Conference Proceedings, 2006Automotive steels, Mild and Dual Phase590 (DP590) are characterized in tension at room temperature, using the quasi‐static and split Hopkinson bar techniques at various strain rates ranging from ∼10−3/s to ∼1800/s. Tension stress‐strain data for both the steels are analyzed to determine the Johnson‐Cook Strength model constants, J‐C strength model ...
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Identification Methods of Parameters for Johnson-Cook Constitutive Equation – Comparison
Applied Mechanics and Materials, 2014The paper presents two identification methods of parameters for the Johnson-Cook constitutive equation. The Johnson-Cook equation is one of the most popular semi-empirical constitutive models to describe the equivalent of plastic stress-strain curves.
Michał Grązka +5 more
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