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Validating material...
Validating material modelling for OFHC copper using Dynamic Tensile Extrusion (DTE) test at different velocity impact
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- Bonora, Nicola (författare)
- Universita di Cassino e del Lazio Meridionale
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- Testa, Gabriel (författare)
- Universita di Cassino e del Lazio Meridionale
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- Ruggiero, Andrew (författare)
- Universita di Cassino e del Lazio Meridionale
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Iannitti, G. (författare)
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- Hörnqvist Colliander, Magnus, 1979 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Mortazavi Seyedeh, Nooshin, 1986 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- Author(s), 2017
- 2017
- Engelska.
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Ingår i: AIP Conference Proceedings. - : Author(s). - 1551-7616 .- 0094-243X. ; 1793, s. 100019-
- Relaterad länk:
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https://doi.org/10.1...
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Abstract
Ämnesord
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- In the Dynamic Tensile Extrusion (DTE) test, the material is subjected to very large strain, high strain rate and elevated temperature. Numerical simulation, validated comparing with measurements obtained on soft-recovered extruded fragments, can be used to probe material response under such extreme conditions and to assess constitutive models. In this work, the results of a parametric investigation on the simulation of DTE test of annealed OFHC copper -at impact velocity ranging from 350 up to 420 m/s -using the modified Rusinek-Klepaczko model, are presented. Simulation of microstructure evolution was performed using the visco-plastic self consistent model (VPSC), providing, as input, the velocity gradient history obtained with FEM at selected locations along the axis of the fragment trapped in the extrusion die. Finally, results are compared with EBSD analysis.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering (hsv//eng)
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