Crystals, 2021 In this paper, kinematic relations and constitutive laws in crystal plasticity are analyzed in the context of geometric nonlinearity description and fulfillment of thermodynamic requirements in the case of elastic deformation.
Peter Trusov +2 more
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Inverse Approach of Parameter Optimization for Nonlinear Meta-Model Using Finite Element Simulation
Applied Sciences, 2021 Accurate and efficient estimation and prediction of the nonlinear behavior of materials during plastic working is a major issue in academic and industrial settings.
Seungpyo Hong +2 more
doaj +1 more source
A novel methodology for large strain under intermediate strain rate loading
Polymer Testing, 2021 Hopkinson bar has already worked to measure mechanical properties of materials under high strain rates, but it fails to conduct intermediate strain rates loading with considerable deformation. Thereby, a methodology is proposed for achieving enough large
H. He +5 more
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Strain Hardening at Large Strains [PDF]
, 1989 The strain hardening properties of various fcc metals have been investigated at large strains by means of torsion tests of short thin-walled cylinders. The results show that Stage IV occurs in all cases provided that a low enough test temperature is used; it is a nearly constant hardening rate of 2.10/sup /minus/4/ G in terms of resolved flow stress ...
Rollett, A. D. +4 more
openaire +1 more source
An experimental investigation of the behaviour of steels over large temperature and strain rate ranges [PDF]
, 2013 During forging and machining manufacturing processes, the material is subject to large strains at high strain rates which provoke local heating and microstructural changes.
GERMAIN, Guénaël +3 more
core +1 more source
Modelling, identification and application of phenomenological constitutive laws over a large strain rate and temperature range [PDF]
, 2013 A review of the different phenomenological thermo-viscoplastic constitutive models often applied to forging and machining processes is presented. Several of the most common models have been identified using a large experimental database (Hor et al., 2013)
GERMAIN, Guénaël +3 more
core +1 more source
Linearization and computation for large-strain visco-elasticity
Mathematics in Engineering, 2022 <abstract><p>Time-discrete numerical minimization schemes for simple visco-elastic materials in the Kelvin-Voigt rheology at high strains are not well posed because of the non-quasi-convexity of the dissipation functional. A possible solution is to resort to non-simple material models with higher-order gradients of deformations.
Dondl, Patrick +3 more
openaire +5 more sources
Application of the continuum shell finite element SHB8PS to sheet forming simulation using an extended large strain anisotropic elastic–plastic formulation [PDF]
, 2012 http://link.springer.com/article/10.1007%2Fs00419-012-0620-xThis paper proposes an extension of the SHB8PS solid–shell finite element to large strain anisotropic elasto-plasticity, with application to several non-linear benchmark tests including sheet ...
BALAN, Tudor +3 more
core +1 more source
Large strain creep analysis of composite thick-walled anisotropic cylinders
Journal of Mechanical Engineering and Sciences, 2023 Creep analysis of a thick-walled composite anisotropic cylinder under internal pressure and considering large strains is presented. Using a threshold creep law for composite materials, expressions for stresses, strains, and strain rates are derived for ...
Vinod Arya
doaj +1 more source
Finite Strain Homogenization Using a Reduced Basis and Efficient Sampling
Mathematical and Computational Applications, 2019 The computational homogenization of hyperelastic solids in the geometrically nonlinear context has yet to be treated with sufficient efficiency in order to allow for real-world applications in true multiscale settings.
Oliver Kunc, Felix Fritzen
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