An isothermal small-strain model based on the concept of generalized standard solids is devised, combining Maxwell-type rheology, damage, and perfect plasticity in the bulk. An interface analogue of the model is formulated at the lithospheric faults, exploiting concepts of adhesive contacts with interfacial plasticity. The model covers simultaneously features as rupturing of the fault zone acco...

In the present work, we propose a novel model coupling phase-field, dislocation density based plasticity and damage. The governing equations are constructed on evolutions of mobile immobile dislocations. Mechanisms including multiplication, annihilation, mobile–immobile transfer due to interactions block interfaces incorporated in model. Especially, “swallow-gap” problem surrounding coarsened s...

shear modulus and damping ratio are important input parameters in dynamic analysis. a series of resonant column tests was carried out on pure clays and sand-clay mixtures prepared at different densities to investigate the effects of aggregate content, confining stress, void ratio and clay plasticity on the maximum shear modulus and minimum damping ratio. test results revealed an increase in the...

This paper presents an Eulerian shock physics analysis of the formation of a Tantalum explosively-formed projectile (EFP). Recent modi cations to the Bammann-Chiesa-Johnson (BCJ) thermo-visco-poro-plasticity model are brie y described. Speci cally, a general pressure and porositydependent yield function is incorporated within the BCJ model in order to be able to consider various representations...

Abstract. In this paper, advanced numerical models are used to study the progressive damage of a historic building, namely Palazzo Podestà and Civic Tower Accumoli (central Italy). The dynamic behaviour structure is analyzed following important seismic events such as those that occurred in 2016-2017. Discontinuous continuous approaches used. formers, masonry response represented both with Discr...

The nonlinear mechanical behavior of intact rock and mass is characterized by irreversible deformation, associated with strain hardening, softening degradation stiffness. In the case stratified types like shales or phyllites, additionally depends on loading direction respect to orientation principal material directions, resulting in inherent anisotropic behavior, many cases more specifically tr...

A multi-scale model is developed for modeling of plastic deformation and induced damage in rock-like materials containing pores mineral inclusions. An analytical macroscopic yield criterion first determined from three steps homogenization. This explicitly takes into account respective effects two populations inclusions at different scales. The accuracy evaluated by comparisons with numerical re...