Knowledge of plasticity-induced damage leading to the loss material in oscillatory contacts is paramount importance various electromechanical systems comprising contact-mode elements exposed high-frequency vibrations. However, experimental investigation wear behavior devices experiencing microscopic contact (fretting) complex, time consuming, and expensive. More importantly, progression critica...

A thermodynamics-based damage mechanics rate dependent constitutive model is used to simulate experiments conducted on thin layer eutectic Pb/Sn solder joints. As compared to previous implementations of the model here we correct the difficulties introduced by the slow convergency rate of the Owen and Hinton (Owen, D.R.J., Hinton, E., 1980. Finite Element in Plasticity. Pineridge Press Limited, ...

Functional rehabilitation of the cortex following peripheral or central nervous system damage is likely to be improved by a combination of behavioural training and natural or therapeutically enhanced synaptic plasticity mechanisms. Experience-dependent plasticity studies in the somatosensory cortex have begun to reveal those synaptic plasticity mechanisms that are driven by sensory experience a...

the present paper is devoted to a new critical state based plasticity model able to predict drained and undrained behaviour of granular material. it incorporates a bounding surface plasticity model describing in multilaminate framework to capitalize on advantages of this mathematical framework. most of the models developed using stress/strain invariants are not capable of identifying the parame...

a semi-micromechanical multilaminate model is introduced here to predict the mechanical behavior of soils. this model is like a bridge between micro and macro scale upon the satisfaction of minimum potential energy level during any applied stress/strain increments. the concept of this model is based on a certain number of sampling planes which constitute the elastic-plastic behavior of the soil...

Abstract Researchers must decide on how they will model the non-linear material response in a Finite Element simulation to assess seismic vulnerability. This paper aims at giving an insight into these modelling decisions by comparing Fiber and Lumped Plasticity Models static dynamic analysis RC frame. The methodology is based performance-based earthquake engineering determine expected damage st...

A three-dimensional framework for low-cycle fatigue analysis of polycrystalline aggregates is proposed in this work. First, a cohesive law coupling plasticity and damage developed modelling cycle-by-cycle degradation material interfaces up to complete de-cohesion failure. The may model both quasi-static under increasing monotonic load cyclic loading, through coupled plasticity-damage whose acti...

Abstract Compressive mechanical testing was performed on continuous fiber Flax/Epoxy laminate specimens, capturing, and quantifying its evolving in-plane plasticity moduli. This non-linear behaviour simulated using a modified continuum damage mechanics-based model. The standard Mesoscale Damage Theory (MDT) of Ladeveze Le Dantec to include fiber-direction evolution constitutive equations in ord...

The receptive fields of neurons in primary visual cortex that are inactivated by retinal damage are known to ‘shift’ to nondamaged retinal locations, seemingly due to the plasticity of intracortical connections. We have observed in cats that these shifts occur in a pattern that is highly convergent, even among receptive fields that are separated by large distances before inactivation. Here we s...

Compressive mechanical properties of low-density, open-cell Zr-based bulk metallic glass foams processed by the salt replication method are investigated as a function of relative density and pore size in the ranges 14–28% and 150–355 lm, respectively. Scaling behaviors for strength and stiffness are discussed in the context of models developed for conventional metal foams, and appropriate modif...