Mechanical characterization of a unidirectional pultruded composite lamina using micromechanics and numerical homogenization

Haohui Xin; Ayman Mosallam; Yuqing Liu; Milan Veljkovic; Jun He

doi:10.1016/j.conbuildmat.2019.04.191

Mechanical characterization of a unidirectional pultruded composite lamina using micromechanics and numerical homogenization

Haohui Xin, Ayman Mosallam, Yuqing Liu^*, Milan Veljkovic, Jun He

^*Corresponding author for this work

Steel & Composite Structures

Research output: Contribution to journal › Article › Scientific › peer-review

21 Citations (Scopus)

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Abstract

In this paper, analytical and numerical homogenization methods are proposed to effectively simulate the macroscopic characteristics of a pultruded composite lamina. A continuum damage model was implemented via user material subroutine to model fiber failure, while the Mohr-Coulomb plastic criterion is employed to model matrix damage. In order to simulate the damage of the fiber-matrix interface, the relationship between traction and displacement is established. The proposed theoretical and numerical models were verified by tensile, compressive, and shear test results. The outcomes of this study indicated that both theoretical, numerical prediction values agree well with experimental verification results confirming the validity of the proposed methodology in providing a reliable reference for structural design of pultruded fiber reinforced polymeric (FRP) composite structures.

Original language	English
Pages (from-to)	101-118
Number of pages	18
Journal	Construction and Building Materials
Volume	216
DOIs	https://doi.org/10.1016/j.conbuildmat.2019.04.191
Publication status	Published - 2019

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care

Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

Engineering constants
Micro-mechanic analysis
Mohr-Coulomb plastic criterion
Numerical homogenization
Pultruded unidirectional GFRP lamina

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10.1016/j.conbuildmat.2019.04.191

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title = "Mechanical characterization of a unidirectional pultruded composite lamina using micromechanics and numerical homogenization",

abstract = "In this paper, analytical and numerical homogenization methods are proposed to effectively simulate the macroscopic characteristics of a pultruded composite lamina. A continuum damage model was implemented via user material subroutine to model fiber failure, while the Mohr-Coulomb plastic criterion is employed to model matrix damage. In order to simulate the damage of the fiber-matrix interface, the relationship between traction and displacement is established. The proposed theoretical and numerical models were verified by tensile, compressive, and shear test results. The outcomes of this study indicated that both theoretical, numerical prediction values agree well with experimental verification results confirming the validity of the proposed methodology in providing a reliable reference for structural design of pultruded fiber reinforced polymeric (FRP) composite structures.",

keywords = "Engineering constants, Micro-mechanic analysis, Mohr-Coulomb plastic criterion, Numerical homogenization, Pultruded unidirectional GFRP lamina",

author = "Haohui Xin and Ayman Mosallam and Yuqing Liu and Milan Veljkovic and Jun He",

note = "Green Open Access added to TU Delft Institutional Repository {\textquoteleft}You share, we take care!{\textquoteright} – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. ",

year = "2019",

doi = "10.1016/j.conbuildmat.2019.04.191",

language = "English",

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AU - Xin, Haohui

AU - Mosallam, Ayman

AU - Liu, Yuqing

AU - Veljkovic, Milan

AU - He, Jun

N1 - Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

PY - 2019

Y1 - 2019

N2 - In this paper, analytical and numerical homogenization methods are proposed to effectively simulate the macroscopic characteristics of a pultruded composite lamina. A continuum damage model was implemented via user material subroutine to model fiber failure, while the Mohr-Coulomb plastic criterion is employed to model matrix damage. In order to simulate the damage of the fiber-matrix interface, the relationship between traction and displacement is established. The proposed theoretical and numerical models were verified by tensile, compressive, and shear test results. The outcomes of this study indicated that both theoretical, numerical prediction values agree well with experimental verification results confirming the validity of the proposed methodology in providing a reliable reference for structural design of pultruded fiber reinforced polymeric (FRP) composite structures.

AB - In this paper, analytical and numerical homogenization methods are proposed to effectively simulate the macroscopic characteristics of a pultruded composite lamina. A continuum damage model was implemented via user material subroutine to model fiber failure, while the Mohr-Coulomb plastic criterion is employed to model matrix damage. In order to simulate the damage of the fiber-matrix interface, the relationship between traction and displacement is established. The proposed theoretical and numerical models were verified by tensile, compressive, and shear test results. The outcomes of this study indicated that both theoretical, numerical prediction values agree well with experimental verification results confirming the validity of the proposed methodology in providing a reliable reference for structural design of pultruded fiber reinforced polymeric (FRP) composite structures.

KW - Engineering constants

KW - Micro-mechanic analysis

KW - Mohr-Coulomb plastic criterion

KW - Numerical homogenization

KW - Pultruded unidirectional GFRP lamina

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DO - 10.1016/j.conbuildmat.2019.04.191

M3 - Article

AN - SCOPUS:85065099636

SN - 0950-0618

VL - 216

SP - 101

EP - 118

JO - Construction and Building Materials

JF - Construction and Building Materials

ER -

Mechanical characterization of a unidirectional pultruded composite lamina using micromechanics and numerical homogenization

Abstract

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Keywords

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