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Polish Academy of Sciences

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Manuel Roth

Giessen University of Applied Sciences (DE)


Conference papers
1.  Frąś T., Roth M., Pawłowski P., Thermo-viscoplastic behavior of AA7020-T651 in application for modeling of dynamic loadings, ICCEE 2016, International Conference on Civil and Environmental Engineering, 2016-10-17/10-19, Hiroshima (JP), pp.1-8, 2016

Abstract:
The stress–strain behavior of the rolled AA7020 aluminum tempered in T651 conditions is studied at various strain rates and temperatures. Basing on tensile, shear and compression tests, the effects of strain and strain-rate hardening, thermal softening and plastic anisotropy are discussed. The parameters of the thermo-viscoplastic flow and fracture models proposed by Johnson and Cook are identified and validated basing on the numerical modeling.
The obtained constitutive relations may be applied to model more complex states of stresses resulted from different loading conditions.

Keywords:
AA7020-T651, flow and fracture models, metals under dynamic loadings, numerical simulation of metal deformation

Affiliations:
Frąś T. - other affiliation
Roth M. - Giessen University of Applied Sciences (DE)
Pawłowski P. - IPPT PAN

Conference abstracts
1.  Frąś T., Roth M., Pawłowski P., Thermo-viscoplastic behavior of AA7020-T651 in application for modeling of dynamic loadings, ICCEE 2016, International Conference on Civil and Environmental Engineering, 2016-10-17/10-19, Hiroshima (JP), pp.1-2, 2016

Abstract:
The stress–strain behavior of the rolled AA7020 aluminum tempered in T651 conditions is studied at various strain rates and temperatures. Basing on tensile, shear and compression tests, the effects of strain and strain-rate hardening, thermal softening and plastic anisotropy are discussed. The parameters of the thermo-viscoplastic flow and fracture models proposed by Johnson and Cook are identified and validated basing on the numerical modeling.
The obtained constitutive relations may be applied to model more complex states of stresses resulted from different loading conditions.

Keywords:
AA7020-T651, flow and fracture models, metals under dynamic loadings, numerical simulation of metal deformation

Affiliations:
Frąś T. - other affiliation
Roth M. - Giessen University of Applied Sciences (DE)
Pawłowski P. - IPPT PAN

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