This paper gives an intuitive numerical multi-scale method to estimate damping in anisotropic viscoelastic hybrid composite structures using finite element analysis. Different CFRP-R (CFRP with Rubber) architectures, both microstructural and macrostructural, are studied compared order maximize but also minimize rigidity loss. Homogenization by virtual DMA frequency domain is performed on repres...

Biopolymer gels, such as those made out of fibrin or collagen, are widely used in tissue engineering applications and biomedical research. Moreover, naturally assembles into gels vivo during wound healing thrombus formation. Macroscale biopolymer gel mechanics dictated by the microscale fiber network. Hence, accurate description can be achieved using representative volume elements (RVE) that ex...

This paper presents a new multi-scale method for the homogenization analysis of hyperelastic solids undergoing finite strains. The key contribution is to use an incremental nonlinear homogenization technique in tandem with a model reduction method, in order to alleviate the complexity of multiscale procedures, which usually involve a large number of nonlinear nested problems to be solved. The p...

The model proposed simulates the effective material behavior of calcified hydrogels using multiscale finite element method (FEM). To this end, representative volume elements (RVEs) are generated to depict biphasic microstructure consisting organic hydrogel and inorganic calcium phosphate. choice matrix influences type agglomeration phase thus dictates geometry RVE. Most commonly, appears in for...

The present paper aims to develop a micromechanics-based effective elastic model of functionally graded composites. At the macroscopic scale, effective material properties of the composites are uniform in the same graded layer while gradually changing along the grading direction. Microstructurally, infinite particles are randomly dispersed in the matrix with gradual transitions. Particles are a...

The conceptualization of a representative volume element (RVE) hardened cement paste for numerical homogenization mechanical problems rests on identifying the largest discernible microstructural feature, i.e. unreacted grains. While particle size distribution (PSD) anhydrous is well-controlled production parameter, evolution grain throughout hydration remained unresolved. This study analyzes di...

The mechanical properties of electrospun nanofiber membranes are critical for their applications. A clear understanding of the mechanical properties that result from the characteristics of the individual fiber and membrane microstructure is vital in the design of fiber composites. In this reported study, silk fibroin (SF)/polycaprolactone (PCL) composite nanofiber membranes were preparedusing a...

Strain-rate-dependent mechanical properties and impact performance of manufactured epoxy-based nanocomposites are investigated. As reinforcements, fumed silica (FS) halloysite nanotube (HNT) used alongside Albipox 1000 Nanopox F700. First, the internal structures composites visualised using scanning electron microscopy (SEM). To identify strain-rate-dependent properties, three-point bend tests ...

In the present study we elucidate nature of local strain statistics evolution during tensile deformation in polycrystalline materials. A rate-independent formulation was implemented within a crystal plasticity framework by means representative volume element (RVE) analysis. Local elastic strain, as well stress, were found to obey normal distribution, whereas plastic conforms lognormal distribut...

In this manuscript, the computational homogenisation of phase-field fractures is addressed. To end, a variationally consistent two-scale fracture framework developed, which formulates coupled momentum balance and evolution equations at macro-scale as well Representative Volume Element (RVE1) scale. The variable represent RVE scale, however, macro-scale, it treated an auxiliary variable. latter ...