J Friedlein, J Mergheim, P Steinmann - European Journal of Mechanics-A …, 2023 - Elsevier
We contrast different gradient-enhancements for plasticity-damage material models in the logarithmic strain space and compare them to reference models based on multiplicative …
J Friedlein, J Mergheim, P Steinmann - International Journal of Solids and …, 2022 - Elsevier
Additive plasticity in the logarithmic strain space is compared to multiplicative plasticity for various loading cases including coaxial and non-coaxial plastic deformations. Even though …
P Neff, ID Ghiba - Continuum Mechanics and Thermodynamics, 2016 - Springer
We investigate an immediate application in finite strain multiplicative plasticity of the family of isotropic volumetric–isochoric decoupled strain energies F ↦ W_\rm eH (F):= W _\rm eH …
P Neff, ID Ghiba - International Journal of Non-Linear Mechanics, 2016 - Elsevier
In this paper we consider the additive logarithmic finite strain plasticity formulation from the view point of loss of ellipticity in elastic unloading. We prove that even if an elastic energy F↦ …
S Forest - Handbook of Nonlocal Continuum Mechanics …, 2019 - matperso.minesparis.psl.eu
Eringen and Mindlin's original micromorphic continuum model is presented and extended towards finite elastic-plastic deformations. The framework is generalized to any additional …
T Mandys, T Kroupa, V Laš, L Lobovský - Composites Science and …, 2019 - Elsevier
A hyperplastic material model with damage was developed in order to describe the non- linear mechanical behaviour of woven composites. The proposed model is based on …
P Neff, ID Ghiba - arXiv preprint arXiv:1410.2819, 2014 - math.uaic.ro
In this paper we consider the additive logarithmic finite strain plasticity formulation from the view point of loss of ellipticity in elastic unloading. We prove that even if an elastic energy …
A methodology to calculate surface strains from a rectangular grid placed on a forming blank is introduced. This method consists of treating the grid points as nodes of a finite element …