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Johnson cook constitutive modeling for austenite metal in hot forming process
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نویسنده
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senin a. ,nopiah z.m. ,ihsan a.k.a.m. ,abdullah s. ,wahab d.a. ,jamaludin m.j. ,zakaria a.
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منبع
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jurnal teknologi - 2016 - دوره : 78 - شماره : 6-10 - صفحه:71 -75
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چکیده
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Numerical computations have helped process engineers in designing the stamping process with minimal process defects. the constitutive modelling for hot stamping represents a complex relationship between stress,strain,strain rate and process temperature. the sheet thickness is 1.5 mm were prepared according to the astm standard. the flow curve properties of nph-1500 sheet were investigated by conducting uniaxial tension tests with temperature from 600°c to 800°c and subjected to strain rate of 0.1/s,1/s and 10/s. the flow curves for the respective experiment runs were investigated and modelled with johnson cook constitutive modelling where the important metal parameters were derived. based on the results,the error of the metal parameters values from experimental works and commercial database was found to be less than 5%. © 2016 penerbit utm press. all rights reserved.
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کلیدواژه
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Embedded material model; Flow curve; Hot stamping; Johnson cook constitutive model; Material stress
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آدرس
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faculty of engineering and built environment,universiti kebangsaan malaysia,ukm,bangi,selangor,malaysia,institute of product design and manufacturing,universiti kuala lumpur,kuala lumpur, Malaysia, unit of fundamental engineering studies,faculty of engineering and built environment,universiti kebangsaan malaysia,ukm,bangi,selangor,malaysia,center for automotive research,faculty of engineering and built environment,universiti kebangsaan malaysia,ukm,bangi,selangor, Malaysia, faculty of engineering and built environment,universiti kebangsaan malaysia,ukm,bangi,selangor,malaysia,center for automotive research,faculty of engineering and built environment,universiti kebangsaan malaysia,ukm,bangi,selangor, Malaysia, faculty of engineering and built environment,universiti kebangsaan malaysia,ukm,bangi,selangor,malaysia,center for automotive research,faculty of engineering and built environment,universiti kebangsaan malaysia,ukm,bangi,selangor, Malaysia, faculty of engineering and built environment,universiti kebangsaan malaysia,ukm,bangi,selangor,malaysia,center for automotive research,faculty of engineering and built environment,universiti kebangsaan malaysia,ukm,bangi,selangor, Malaysia, institute of product design and manufacturing,universiti kuala lumpur,kuala lumpur, Malaysia, institute of product design and manufacturing,universiti kuala lumpur,kuala lumpur, Malaysia
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Authors
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