Deformation mechanisms and failure of textile laminates are strongly affected by inter-layer configurations – a mutual shift of the plies. To model it within a traditional framework, one must construct a representative volume element (RVE), which includes all the plies. This is a time consuming and computationally expensive work. As an alternative, the paper suggests boundary conditions (BC) im...

Fiber failures which may exist in a continuous fiber· composite before the .composite is loaded or generated while the composite is loaded, introduce an additional strain component not included in existing continuous fiber models. Equations are developed which can be used to calculate the magnitude of this additional strain. A Finite Element Model (FEM), in the form of a Representative Volume E...

A three-dimensional multiscale model has been developed and used to analyze the evolutions of microstructural attributes and hydraulic properties inside dilatant shear bands. In the proposed multiscale coupled scheme, we establish links between the discrete element method, which explicitly replicates granular motion of individual particles, and a fi nite element continuum model, which captures ...

The paper is devoted to the homogenization of porous piezoelectric materials saturated by electrically inert fluid. The solid part of a representative volume element consists of the piezoelectric skeleton with embedded conductors. The pore fluid in the periodic structure can constitute a single connected domain, or an array of inclusions. Also the conducting parts are represented by several mut...

A synergistic stiffening effect observed in the elastic mechanical properties of LBL assembled polymer/ clay nanocomposites is studied via two continuum mechanics approaches. The nanostructure of the representative volume element (RVE) includes an effective interphase layer that is assumed to be perfectly bonded to the particle and matrix phases. An inverse method to determine the effective thi...

In this study, a probabilistic model based on Monte-Carlo theory is applied to predict the fatigue behavior of cast aluminum alloys. The objective proposed approach investigate effect porosity (i.e. defect size distribution and spatial density) strength its associated scatter for uniaxial loads with load ratio R = 0.1. two alloys very different characteristics. results these confirm that can be...