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Modified Johnson-Cook flow stress model with thermal softening damping for finite element modeling of cutting
Tekijät: Laakso SVA, Niemi E
Kustantaja: SAGE PUBLICATIONS LTD
Julkaisuvuosi: 2016
Journal: Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture
Tietokannassa oleva lehden nimi: PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE
Lehden akronyymi: P I MECH ENG B-J ENG
Vuosikerta: 230
Numero: 2
Aloitussivu: 241
Lopetussivu: 253
Sivujen määrä: 13
ISSN: 0954-4054
DOI: https://doi.org/10.1177/0954405415619873
Tiivistelmä
Results of materials testing for lead-free brass show that the effect of thermal softening decreases significantly when the strain rate is high. This behavior is referred to as thermal softening damping. In this article, a flow stress model with thermal softening damping based on the Johnson-Cook flow stress model was developed. Finite element simulations with the proposed model are compared to cutting experiments to estimate the effect of damping in metal cutting.
Results of materials testing for lead-free brass show that the effect of thermal softening decreases significantly when the strain rate is high. This behavior is referred to as thermal softening damping. In this article, a flow stress model with thermal softening damping based on the Johnson-Cook flow stress model was developed. Finite element simulations with the proposed model are compared to cutting experiments to estimate the effect of damping in metal cutting.
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