Journal ArticleDOI
A new three-dimensional interface finite element to simulate fracture in composites
Javier Segurado,Javier LLorca +1 more
TLDR
In this paper, a new three-dimensional quadratic interface finite element is developed to simulate damage by particle fracture and interface decohesion in composites by numerical simulation in three-dimensions of a representative volume element which reproduces the microstructure.About:
This article is published in International Journal of Solids and Structures.The article was published on 2004-06-01. It has received 157 citations till now. The article focuses on the topics: Extended finite element method & Finite element method.read more
Citations
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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.
Journal ArticleDOI
Continuum Models of Ductile Fracture: A Review
TL;DR: In this paper, the authors present a review of the material constitutive equations and computational tools which have been recently developed to simulate ductile rupture and fracture, which are used in structural computations.
Journal ArticleDOI
Mechanical Characterizations of 3D-printed PLLA/Steel Particle Composites.
TL;DR: The results showed that the interphase layer provided a smooth transition of elastic modulus from steel particles to the polymeric matrix, and a 10% volume fraction of steel particles could enhance the elasticModulus of PLLA polymer by 31%.
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.
Continuum Models of Ductile Fracture: A Review
TL;DR: The approach based on Rice (1968) J-integral is widely used for industrial applications but suffers from various limitations: (i) it can only deal with pre-existing cracks and cannot be applied to model crack initiation and pro-pagation from a notch as discussed by the authors.
References
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Journal ArticleDOI
A Continuum Model for Void Nucleation by Inclusion Debonding
TL;DR: In this paper, a boundary value problem simulating a periodic array of rigid spherical inclusions in an isotropically hardening elastic-viscoplastic matrix is analyzed and the effect of the triaxiality of the imposed stress state on nucleation is studied and the numerical results are related to the description of void nucleation within a phenomenological constitutive framework.
A continuum model for void nucleation by inclusion debonding
TL;DR: In this article, a boundary value problem simulating a periodic array of rigid spherical inclusions in an isotropically hardening elastic-viscoplastic matrix is analyzed and the effect of the triaxiality of the imposed stress state on nucleation is studied and the numerical results are related to the description of void nucleation within a phenomenological constitutive framework.
Journal ArticleDOI
Finite-deformation irreversible cohesive elements for three-dimensional crack-propagation analysis
Michael Ortiz,Anna Pandolfi +1 more
TL;DR: In this paper, a three-dimensional finite deformation cohesive element and a class of irreversible cohesive laws are proposed to track dynamic growing cracks in a drop-weight dynamic fracture test.
Journal ArticleDOI
Effective properties of composite materials with periodic microstructure : a computational approach
TL;DR: In this paper, two different families of numerical methods are considered to solve the problem of a homogeneous linear reference material undergoing a nonhomogeneous periodic eigenstrain, and the relative merits of the two methods are compared and several examples are discussed.
Journal ArticleDOI
Effect of fibre debonding in a whisker-reinforced metal
TL;DR: In this article, the debonding behaviour at the interface is represented in terms of a cohesive zone model that describes decohesion by normal separation and tangential separation, and the effect of friction during pullout is included in the model.
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Finite-deformation irreversible cohesive elements for three-dimensional crack-propagation analysis
Michael Ortiz,Anna Pandolfi +1 more