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Micro/macro approach for prediction of matrix cracking evolution in laminated composites

Micro/macro approach for prediction of matrix cracking evolution in laminated composites
Micro/macro approach for prediction of matrix cracking evolution in laminated composites
A computational constitutive model is presented to predict matrix cracking evolution in laminates under in-plane loading. Transverse cracks are treated as separate discontinuities in the micro-model that provides damage parameters for the macro-model. Both micro- and macro-models are implemented using finite element analysis, specifically, ANSYS, to avoid limitation of analytical micro-modeling. The computational cost of the micro-model is limited to constructing a database of micro-model predictions a priori. The macro-model is simply a finite element analysis discretization of the structure using plane stress or shell elements in ANSYS. The macro-model queries the database, which effectively becomes a constitutive model. The damage surfaces in the database are obtained from the results of large number of finite element micro-scale (unit-cell) analyses. The proposed procedure is implemented in ANSYS as a usermaterial subroutine for transverse crack initiation and propagation in symmetric cross-ply and [0r/(θ/-θ)s/0n]s laminates under in-plane loads. This method is also examined to study matrix crack evolution in tensile specimen with open hole, and the results found to be in good agreement with available experimental data.
discrete fracture mechanics, matrix cracking multiscale, matrix damage
0021-9983
2647-2659
Ghayour, Mohammadhossein
8102d29b-0ec9-49ef-a383-381bec27a1f4
Hosseini-Toudeshky, H
772af740-2748-4c22-8aa3-69868fb29673
Jalalvand, Meisam
21ef0df8-fc7c-4466-a2fc-ee98ed3408a2
Barbero, Ever J.
54949711-3ae3-4af2-90e9-5ddb586f34f2
Ghayour, Mohammadhossein
8102d29b-0ec9-49ef-a383-381bec27a1f4
Hosseini-Toudeshky, H
772af740-2748-4c22-8aa3-69868fb29673
Jalalvand, Meisam
21ef0df8-fc7c-4466-a2fc-ee98ed3408a2
Barbero, Ever J.
54949711-3ae3-4af2-90e9-5ddb586f34f2

Ghayour, Mohammadhossein, Hosseini-Toudeshky, H, Jalalvand, Meisam and Barbero, Ever J. (2016) Micro/macro approach for prediction of matrix cracking evolution in laminated composites. Journal of Composite Materials, 50 (19), 2647-2659. (doi:10.1177/0021998315610179).

Record type: Article

Abstract

A computational constitutive model is presented to predict matrix cracking evolution in laminates under in-plane loading. Transverse cracks are treated as separate discontinuities in the micro-model that provides damage parameters for the macro-model. Both micro- and macro-models are implemented using finite element analysis, specifically, ANSYS, to avoid limitation of analytical micro-modeling. The computational cost of the micro-model is limited to constructing a database of micro-model predictions a priori. The macro-model is simply a finite element analysis discretization of the structure using plane stress or shell elements in ANSYS. The macro-model queries the database, which effectively becomes a constitutive model. The damage surfaces in the database are obtained from the results of large number of finite element micro-scale (unit-cell) analyses. The proposed procedure is implemented in ANSYS as a usermaterial subroutine for transverse crack initiation and propagation in symmetric cross-ply and [0r/(θ/-θ)s/0n]s laminates under in-plane loads. This method is also examined to study matrix crack evolution in tensile specimen with open hole, and the results found to be in good agreement with available experimental data.

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More information

e-pub ahead of print date: 15 October 2015
Published date: 1 August 2016
Keywords: discrete fracture mechanics, matrix cracking multiscale, matrix damage

Identifiers

Local EPrints ID: 446772
URI: http://eprints.soton.ac.uk/id/eprint/446772
ISSN: 0021-9983
PURE UUID: 10d3124b-daa2-41f5-84fc-eda71471d77a
ORCID for Meisam Jalalvand: ORCID iD orcid.org/0000-0003-4691-6252

Catalogue record

Date deposited: 22 Feb 2021 17:31
Last modified: 23 Feb 2021 02:58

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Contributors

Author: Mohammadhossein Ghayour
Author: H Hosseini-Toudeshky
Author: Ever J. Barbero

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