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Visco-elastic regularization and strain softening [PDF]
, 2008 In this paper it is intended to verify the capacity of regularization of the numerical solution of an elasto-plastic problem with linear strain softening. The finite element method with a displacement approach is used. Drucker-Prager yield criteria is considered.
Cardoso, R., Silva, V. D., Varum, H.
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Discretization influence in strain—softening problems [PDF]
Engineering Computations, 1995 The dispersive behaviour of waves in softening problems is analysed. Attention is focused on the influence of the numerical scheme on the dispersion characteristics in the process of localization of deformation. Distinction has been made between softening models defined in a standard plasticity framework and in a gradient‐dependent plasticity theory ...
Sluys, L.J. (author) +2 more
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Viscoplasticity for instabilities due to strain softening and strain‐rate softening [PDF]
International Journal for Numerical Methods in Engineering, 1997 Three viscoplastic approaches are examined in this paper. First, the overstress viscoplastic models (i.e. the Perzyna model and the Duvaut—Lions model) are outlined. Next, a consistency viscoplastic approach is presented. In the consistency model a rate-dependent yield surface is employed while the standard Kuhn—Tucker conditions for loading and ...
Wang, W.M. (author) +2 more
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Strain Softening in Stretched DNA [PDF]
Physical Review Letters, 2008 The microscopic mechanics of DNA stretching was characterized using extensive molecular dynamics simulations. By employing an anisotropic pressure-control method, realistic force-extension dependences of effectively infinite DNA molecules were obtained. A coexistence of B and S DNA domains was observed during the overstretching transition.
Binquan, Luan, Aleksei, Aksimentiev
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Strain Softened Bending Modulus of Graphene Oxide
SSRN Electronic Journal, 2021 Graphene oxide is attractive in flexible materials due to its biocompatibility. Herein, flexibility of graphene oxide under uniaxial tensile strain has been studied in term of the bending modulus. It is demonstrated that tensile strain plays an effective role in softening the bending modulus of graphene oxide.
Songding Yu +3 more
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A pilot study to measure dynamic elasticity of the bladder during urodynamics [PDF]
, 2017 AIMS: Previous studies using isolated strips of human detrusor muscle identified adjustable preload tension, a novel mechanism that acutely regulates detrusor wall tension. The purpose of this investigation was to develop a method to identify a correlate
Abrams +24 more
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Stress-strain response and microstructural evolution of a FeMnCAl TWIP steel during tension-compression tests [PDF]
, 2016 © 2016. The stress-strain response of a Fe-17.5Mn-0.7C-2Al TWIP steel during cyclic loading has been investigated by means of tension-compression tests within the strain limits of ±2%, ±5% and ±10%. In addition, the microstructural evolution during the ±
Benito Páramo, José Antonio +3 more
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Multi-scale computational model for failure analysis of metal frames that includes softening and local buckling [PDF]
, 2010 In this work we present a new modelling paradigm for computing the complete failure of metal frames by combining the stress-resultant beam model and the shell model.
Brank, Boštjan +2 more
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Constitutive modeling of the anisotropic behavior of Mullins softened filled rubbers [PDF]
, 2003 Original constitutive modeling is proposed for filled rubber materials in order to capture the anisotropic softened behavior induced by general non-proportional pre-loading histo-ries.
Bouvier, P +7 more
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Orthotropic cyclic stress-softening model for pure shear during repeated loading and unloading [PDF]
, 2014 We derive an orthotropic model to describe the cyclic stress softening of a carbon-filled rubber vulcanizate through multiple stress-strain cycles with increasing values of the maximum strain. We specialize the deformation to pure shear loading.
Rickaby, Stephen R., Scott, Nigel H.
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