Journal ArticleDOI
Multiscale modeling of fracture in fiber-reinforced composites
Carlos González,Javier LLorca +1 more
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TLDR
In this article, the fracture behavior of a fiber-reinforced composite beam in the presence of a notch perpendicular to the fibers is simulated by means of a multiscale model based on an embedded cell approach in three dimensions.About:
This article is published in Acta Materialia.The article was published on 2006-09-01. It has received 120 citations till now. The article focuses on the topics: Multiscale modeling & Fracture (geology).read more
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Journal ArticleDOI
Mechanical behavior of unidirectional fiber-reinforced polymers under transverse compression: Microscopic mechanisms and modeling
Carlos González,Javier LLorca +1 more
TL;DR: In this paper, the mechanical behavior of polymer-matrix composites unidirectionally reinforced with carbon or glass fibers subjected to compression perpendicular to the fibers was studied using computational micromechanics using finite element analysis of a representative volume element of the microstructure idealized as a random dispersion of parallel fibers embedded in the polymeric matrix.
PatentDOI
Metal matrix composites
TL;DR: In this article, a ceramic-reinforced aluminum matrix composite is formed by contacting a molten aluminum-magnesium alloy with a permeable mass of ceramic material in the presence of a gas comprising from about 10 to 100% nitrogen, by volume, balance non-oxidizing gas, e.g., hydrogen or argon.
Journal ArticleDOI
Multiscale modeling of composite materials: a roadmap towards virtual testing
Javier LLorca,Carlos González,Jon M. Molina-Aldareguia,Javier Segurado,Rocío Seltzer,Federico Sket,M. Rodríguez,S. Sadaba,R. Muñoz,Luis P. Canal +9 more
TL;DR: A bottom-up, multiscale modeling approach is presented to carry out high-fidelity virtual mechanical tests of composite materials and structures and the roadmap for the extension of the current strategy to include functional properties and processing into the simulation scheme is delineated.
Journal ArticleDOI
Effect of fiber, matrix and interface properties on the in-plane shear deformation of carbon-fiber reinforced composites
Essam Totry,Jon M. Molina-Aldareguia,Carlos González,Carlos González,Javier LLorca,Javier LLorca +5 more
TL;DR: In this paper, the effect of fiber, matrix and interface properties on the in-plane shear response of carbon-fiber reinforced epoxy laminates was studied by means of a combination of experiments and numerical simulations.
Journal ArticleDOI
In Quest of Virtual Tests for Structural Composites
Brian N. Cox,Qingda Yang +1 more
TL;DR: Significant advances are being made in the refinement of cohesive models of fracture and the formulation of hybrid stress-strain and traction-displacement models that combine continuum and discrete damage representations in a single calculation.
References
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Journal ArticleDOI
Preprocessing and postprocessing for materials based on the homogenization method with adaptive finite element methods
José M. Guedes,Noboru Kikuchi +1 more
TL;DR: In this paper, the effective average elastic constants of linear elasticity of general composite materials by considering their microstructure were determined using the homogenization method, and a finite element approximation was introduced with convergence study and corresponding error estimate.
Journal ArticleDOI
Multiple scale analysis of heterogeneous elastic structures using homogenization theory and voronoi cell finite element method
TL;DR: In this article, the authors deal with the development of a multiple scale finite element method by combining the asymptotic homogenization theory with Voronoi cell (VCFEM) for microstructural modeling.
Journal ArticleDOI
An analysis of the effects of matrix void growth on deformation and ductility in metal-ceramic composites
TL;DR: In this article, the deformation and failure of metal-matrix composites, by the nucleation and growth of voids within the ductile matrix, are studied numerically and experimentally.
Journal ArticleDOI
A numerical investigation of the effect of particle clustering on the mechanical properties of composites
TL;DR: In this paper, the effect of reinforcement spatial distribution on the mechanical behavior of metal-matrix composites was investigated in finite element analysis of three-dimensional multiparticle cubic unit cells, which stood as representative volume elements of each material with periodic boundary conditions.
Journal ArticleDOI
Hierarchical modeling of heterogeneous solids
TL;DR: In this article, a methodology is introduced for the development of adaptive methods for hierarchical modeling of elastic heterogeneous bodies, based on the idea of computing an estimate of the modeling error introduced by replacing the actual fine-scale material tensor with that of a homogenized material, and to adaptively refine the material description until a prespecified error tolerance is met.
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Mechanical behavior of unidirectional fiber-reinforced polymers under transverse compression: Microscopic mechanisms and modeling
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