In this paper, a void closure model applicable to the general hot forming process has been proposed. Through representative volume element (RVE) method, influences of shape, orientation, and stress state on tendency were analysed. The was established so that it could consider these cross effects. calculates changing radius orientation during deformation by considering rate change parameters aff...

In this paper, we develop a multi-scale modeling framework for multiphysics problem characterized by electro-chemically coupled ion transport in Structural Battery Electrolyte (SBE). The governing equations of the are established coupling Gauss law with mass conservation each mobile species. By utilizing variationally consistent homogenization, able to establish two-scale model where both macro...

Abstract Additive manufacturing enables the fabrication of strut-based lattices that consist periodic representative volume elements (RVE) and can be used as cores in sandwich panels. Due to design freedom provided by additive manufacturing, lattice strut diameter may vary through lattice. Thus, distribution adapted stress variation core achieve an efficient avoid oversizing core. Such grading ...

As a naturally polycrystalline material, Yellow River ice exhibits complex mechanical properties that are closely related to its internal microstructure. To study the micromechanical of this ice, geometrically representative volume element (RVE) and method for determining it proposed. By observing quantifying trends in microstructural characteristics granular micro-numerical model is establishe...

A computationally efficient method for generating virtual periodic representative volume element (RVE), capable of handling arbitrary inclusion shapes, is developed. universal collision/overlap detection and repair proposed, where each shape represented as a union n-Spheres (UnS). constrained optimization problem formulated solved to remove overlaps; closed-form solution derived calculating the...

For the calculation of mechanical properties of large magnet systems in 3-dimensional space, a very fine subdivision of the magnetstructure is necessary. In the finite element programms, this will lead to unacceptably lang computing times and to the limits of computer-storage capacity. This limitation requires a simplification of the structure model. The objective of this work is to find such s...

The main purpose of this work is the computational simulation of the sensitivity coefficients of the homogenized tensor for a polymer filled with rubber particles with respect to the material parameters of the constituents. The Representative Volume Element (RVE) of this composite contains a single spherical particle, and the composite components are treated as homogeneous isotropic media, resu...