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Determination of Johnson–Cook Plasticity Model Parameters for Inconel718
Journal of Materials Engineering and Performance, 2017In order to simulate foreign object damage (FOD) phenomenon in aircraft high-pressure compressor blades made of a nickel-based super-alloy, Johnson–Cook (J–C) plasticity model was used. For prediction of material’s plastic behavior at temperature of 400 °C (working temperature of the blades) in the range of strain rates associated with the FOD ...
H. K. Farahani +2 more
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A modified Johnson-Cook model of 6061-T6 Aluminium profile
Australian Journal of Mechanical Engineering, 2020The flow behaviour of the 6061-T6 aluminium profile in different specimen directions at different strain rates was studied by the tensile test.
Guoqing Geng +3 more
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Modified Johnson-Cook model for vehicle body crashworthiness simulation
International Journal of Vehicle Design, 1999Dynamic response prediction of vehicle bodies is important for vehicle crashworthiness evaluation. The dynamic behaviour of vehicle body materials is dependent on material strain rates. One of the typical high strain rate tensile tests is the split Hopkinson bar test.
Kang, WJ +3 more
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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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Epistemic Uncertainty Modeling of Johnson-Cook Plasticity Model Using Evidence Theory
13th AIAA/ISSMO Multidisciplinary Analysis Optimization Conference, 2010Principles of evidence theory are used to develop a methodology for quantifying epistemic uncertainty in constitutive models that are often used in nonlinear finite element analysis involving large plastic deformation at different strain rates and temperatures.
Shahabedin Salehghaffari +1 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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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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Johnson-Cook model parameters determination for 11% and 14% Mn-Steel
Materials Science and Engineering: B, 2022The behaviour of high-manganese steel under large strains and different strain rates needs to be investigated to predict its response to various dynamic loading conditions including impact. An empirical constitutive relation developed by Johnson and Cook (JC) is applied at high strain rate and dynamic loading conditions to determine the flow stress and
Shahanur Hasan, Md +3 more
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An Enhanced Johnson–Cook Model for Hot Compressed A356 Aluminum Alloy
Advanced Engineering Materials, 2020The isothermal compression experiments with the strain rates of 0.01–10 s−1 and deformation temperature range of 300–420 °C are performed to investigate the hot deformation behavior of A356 aluminum alloy. Also, the complex deformation mechanisms are analyzed. It is found that, as the strain is gradually increased, the flow stress first rises, and then
Xiao-Min Chen +5 more
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Determination of Johnson-Cook material model for weldment of mild steel
Materials Today: Proceedings, 2020Abstract The material behavior of mild steel is determined after the material experiences weld induced heating effect. The mild steel, when subjected to high-speed large deformation, is subjected to high temperatures and strain rate. The material behavior is modeled using the Johnson-Cook (JC) model to incorporate the effect of strain, strain rate ...
Sandeep Yadav +3 more
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