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Journal ArticleDOI

Modeling the inelastic deformation and fracture of polymer composites – Part II: Smeared crack model

TL;DR: In this article, a fully three-dimensional smeared crack model is proposed to predict the onset and propagation of ply failure mechanisms in polymer composites reinforced by unidirectional fibers.
About: This article is published in Mechanics of Materials.The article was published on 2013-04-01. It has received 108 citations till now. The article focuses on the topics: Fracture (geology).
Citations
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Journal ArticleDOI
TL;DR: A mechanistic, data-driven, two-scale approach is developed for predicting the behavior of general heterogeneous materials under irreversible processes such as inelastic deformation and is believed to open new avenues in parameter-free multi-scale modeling of complex materials, and perhaps in other fields that require homogenization of irreversible processes.

287 citations


Cites background from "Modeling the inelastic deformation ..."

  • ...7 Traditional phenomenological constitutive relations [1, 2, 3] characterize the average behaviors of the 8 material, i....

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Journal ArticleDOI
TL;DR: Progressive damage models based on continuum damage mechanics were used in combination with cohesive interface elements to predict the structural response and the failure mechanisms of composite laminates subjected to low-velocity impact.

188 citations

Journal ArticleDOI
TL;DR: In this article, a transverselyisotropic elastic-plastic constitutive model for unidirectional fiber reinforced polymers (FRP) is presented, which is able to represent the fully nonlinear mechanical behavior under multi-axial loading conditions and under triaxial stress states prior to the onset of cracking.

147 citations

Journal ArticleDOI
TL;DR: In this article, the authors proposed a model to predict the strength and damage progression of open-hole composite laminates under compressive loading (OHC) and applied it to study the size effects of OHC.

138 citations


Cites background from "Modeling the inelastic deformation ..."

  • .../ has been identified as 53 for carbon-epoxy systems [15,27]....

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Journal ArticleDOI
TL;DR: In this article, a micro-mechanical finite element model of a composite sublaminate is proposed to study the mechanical response of ultra-thin plies, consisting of a representative volume element of a 90 ° thin lamina in-between two homogenised ± θ ° plies.

128 citations

References
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Journal ArticleDOI
TL;DR: In this paper, the authors evaluated the initiation of cracking and delamination growth in a unidirectional glass/epoxy composite under mode I, mode ZZ, and mixed mode I + II static loading.

2,108 citations

Journal ArticleDOI
TL;DR: In this article, the authors proposed fracture analysis of structural members made of FRP composites and derived the fracture angle which is the key for this evaluation, which is derived in the present paper.

1,529 citations

Journal ArticleDOI
TL;DR: In this paper, two related criteria based on stress distribution are presented for predicting the uniaxial tensile strength of laminated composites containing through the thickness discontinuities of a general shape.
Abstract: Two related criteria based on stress distribution are presented for predicting the uniaxial tensile strength of laminated composites containing through the thickness discontinuities of a general shape. The criteria result in two parameter (unnotched tensile strength and a characteristic dimension) models which are capable of predicting observed discontinuity size effects without resorting to classical concepts of linear elastic fracture mechanics. As a direct consequence of the stress criteria, however, a relationship between Mode I fracture toughness and unnotched laminate tensile strength is determined. Limited comparison of theory to experimental data for circular holes and straight cracks yields good results. The simplicity of the analytical approach coupled with its generality make it of practical value to the designer.

1,463 citations

Journal ArticleDOI
TL;DR: In this paper, a new decohesion element with the capability of dealing with crack propagation under mixed-mode loading is proposed and demonstrated, which is used at the interface between solid finite elements to model the initiation and non-self-similar growth of delaminations in composite materials.
Abstract: A new decohesion element with the capability of dealing with crack propagation under mixed-mode loading is proposed and demonstrated. The element is used at the interface between solid finite elements to model the initiation and non-self-similar growth of delaminations in composite materials. A single relative displacement-based damage parameter is applied in a softening law to track the damage state of the interface and to prevent the restoration of the cohesive state during unloading. The softening law is applied in the three-parameter Benzeggagh-Kenane mode interaction criterion to predict mixed-mode delamination propagation. To demonstrate the accuracy of the predictions, steady-state delamination growth is simulated for quasi-static loading of various single mode and mixed-mode delamination test specimens and the results are compared with experimental data.

1,285 citations

Journal ArticleDOI
TL;DR: In this paper, a thermodynamically consistent damage model is proposed for the simulation of progressive delamination in composite materials under variable-mode ratio, and a constitutive equation is developed to model the initiation and propagation of delamination.

820 citations