Development a refined numerical model for evaluating the matrix cracking and induced delamination formation in cross-ply composite laminates

Madadi, Hamidreza; Farrokhabadi, Amin

doi:10.1016/j.compstruct.2018.05.096

Cited by 26 publications

(4 citation statements)

References 36 publications

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“…In addition, random distribution of fibers is considered inside the RVEs to capture the phenomenon of transverse cracking. For this purpose, the random sequential absorption (RSA) algorithm is employed, which takes the fiber volume fraction, 34 fiber diameter and size of the domain as inputs and gives back the center of the fibers as output. Having the fiber center coordinate obtained by the previous step, simulation of the single lamina is performed in ABAQUS software.…”

Section: Numerical Model—computational Micromechanicsmentioning

confidence: 99%

“…The average value of axial stress at the one edge of the 90° layer, which is far away from the formed matrix cracking, is reported as the in situ strength. It is worth noting that the precise method of calculating the mean in situ strength and the stress–strain diagrams before and after matrix cracking formation has been reported by Madadi and Farrokhabadi 34 …”

Section: Numerical Model—computational Micromechanicsmentioning

confidence: 99%

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In situ strength analysis of cross‐ply composite laminates containing defects and interleaved woven layer using a computational micromechanics approach

Rafie

Madadi

Farrokhabadi

et al. 2021

Fatigue Fract Eng Mat Struct

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The transverse strength of 90° plies located in cross‐ply laminates subjected to transverse tension is investigated numerically. To reach this aim, it is assumed that the transverse cracking is formed by coalescence of fiber–matrix debonding, which propagates along the planes parallel to the fibers. The two‐dimensional finite element model (FEM) investigates the dominant micromechanical damage mechanisms, fiber–matrix debonding, and matrix cracking using the cohesive zone model (CZM) and plasticity, respectively. The numerical simulation is according to the extended computational micromechanics (ECMM) approach, which can be applied as a useful virtual test method instead of performing costly characterization tests. The results obtained from the present study show that the defects such as voids, imperfections, and residual stresses contribute to reducing the in situ strength of 90° plies. In the case of using an interleaved woven layer, the formation of the first transverse crack in unit cells within 90° layer is delayed.

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Section: Numerical Model—computational Micromechanicsmentioning

confidence: 99%

Section: Numerical Model—computational Micromechanicsmentioning

confidence: 99%

In situ strength analysis of cross‐ply composite laminates containing defects and interleaved woven layer using a computational micromechanics approach

Rafie

Madadi

Farrokhabadi

et al. 2021

Fatigue Fract Eng Mat Struct

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“…Kim et al presented a method to determine the local stiffness of a cross‐ply composite laminate containing delamination and matrix cracks. Madadi and Farrokhabadi introduced a refined numerical model to evaluate the matrix cracking and induced delamination formation in cross‐ply composite laminates. A parametric study was performed on different cross‐ply composite laminates with different thicknesses of 90‐degree layer to obtain the in‐situ strength due to matrix cracking as well as induced delamination.…”

Section: Introductionmentioning

confidence: 99%

Numerical investigation of matrix cracking propagation in cross‐ply laminated composites subjected to three‐point bending load using concurrent multiscale model

Madadi

Naghdinasab

Farrokhabadi

2020

Fatigue Fract Eng Mat Struct

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The purpose of the present study is to analyze fiber-matrix debonding and induced matrix cracking formation as two major micromechanical damage modes in cross-ply composite laminates using a two-dimensional numerical approach. To this aim, the cross-ply laminates containing 90-degree layers are modeled, where the fibers are arranged randomly in transverse plies. Damage modes in this numerical model are simulated by the cohesive surface method. The performed analyses reveal that in the laminates with 90-degree layers located in the outer positions, the primary micro damage mode is micro matrix cracking which is initiated from the fiber-matrix debonding damage mode and will be followed by matrix cracking. The main benefit of the present study in comparison to other numerical methods is proposing a virtual test method for damage analysis of different cross-ply laminates in which, the matrix cracking formation will emerge physically in a random and antisymmetric pattern similar to the experimental observations. K E Y W O R D S

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“…More advanced approaches, which are capable of capturing not only constraint effects of laminae embedded in a multidirectional laminate but also damage evolution, were proposed by Ng et al., 12 Zhang et al., 13 Soni et al., 14 Herraes et al., 15 Romanowicz 16 and recently by Madadi and Farrokhabadi. 17 In these models, the effective properties of laminates are determined directly from properties of the ply constituents using mesoscale unit cells that take into account both the ply and laminate architecture. However, in contrast to Mayes and Hansen’s work, 11 these latter studies are restricted to uniaxial loading conditions.…”

Section: Introductionmentioning

confidence: 99%

Micromechanics-based prediction of the failure locus of angle-ply laminates subjected to biaxial loading

Romanowicz

2019

Journal of Composite Materials

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A mesoscale finite element model is presented for calculating the deformation and initial strength of angle-ply laminates subjected to biaxial tension and biaxial tension–compression. Using the concept that the whole laminate structure can be represented by a rhombohedral unit cell, predictions of the mechanical behavior for various biaxial loading ratios are made. Damage by microcracking at the fiber–matrix interface and shear band formation in the matrix are incorporated into the numerical simulations. The failure locus calculated from the mesoscale model is found to agree with experimental data available in the literature better than do theoretical predictions. Results of this study indicate that computational micromechanics can be used for detecting leakage failure in filament wound tubes.

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Development a refined numerical model for evaluating the matrix cracking and induced delamination formation in cross-ply composite laminates

Cited by 26 publications

References 36 publications

In situ strength analysis of cross‐ply composite laminates containing defects and interleaved woven layer using a computational micromechanics approach

In situ strength analysis of cross‐ply composite laminates containing defects and interleaved woven layer using a computational micromechanics approach

Numerical investigation of matrix cracking propagation in cross‐ply laminated composites subjected to three‐point bending load using concurrent multiscale model

Micromechanics-based prediction of the failure locus of angle-ply laminates subjected to biaxial loading

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