A multiscale modelling approach for estimating the effect of defects in unidirectional carbon fiber reinforced polymer composites

Kim Niklas Antin, Anssi Laukkanen, Tom Andersson, Danny Smyl, Pedro Vilaça (Corresponding Author)

Research output: Contribution to journalArticleScientificpeer-review

Abstract

A multiscale modelling approach was developed in order to estimate the effect of defects on the strength of unidirectional carbon fiber composites. The work encompasses a micromechanics approach, where the known reinforcement and matrix properties are experimentally verified and a 3D finite element model is meshed directly from micrographs. Boundary conditions for loading the micromechanical model are derived from macroscale finite element simulations of the component in question. Using a microscale model based on the actual microstructure, material parameters and load case allows realistic estimation of the effect of a defect. The modelling approach was tested with a unidirectional carbon fiber composite beam, from which the micromechanical model was created and experimentally validated. The effect of porosity was simulated using a resin-rich area in the microstructure and the results were compared to experimental work on samples containing pores.

Original languageEnglish
Article number2885
Number of pages15
JournalMaterials
Volume12
Issue number12
DOIs
Publication statusPublished - 12 Jun 2019
MoE publication typeA1 Journal article-refereed

Fingerprint

Carbon fibers
Polymers
Defects
Composite materials
Microstructure
Micromechanics
Reinforcement
Resins
Porosity
Boundary conditions
carbon fiber

Keywords

  • Carbon fiber composite
  • Defect
  • Experimental mechanics
  • Modelling
  • Multiscale

Cite this

@article{20d63529ed034fa8a76c0860bfcf1f6c,
title = "A multiscale modelling approach for estimating the effect of defects in unidirectional carbon fiber reinforced polymer composites",
abstract = "A multiscale modelling approach was developed in order to estimate the effect of defects on the strength of unidirectional carbon fiber composites. The work encompasses a micromechanics approach, where the known reinforcement and matrix properties are experimentally verified and a 3D finite element model is meshed directly from micrographs. Boundary conditions for loading the micromechanical model are derived from macroscale finite element simulations of the component in question. Using a microscale model based on the actual microstructure, material parameters and load case allows realistic estimation of the effect of a defect. The modelling approach was tested with a unidirectional carbon fiber composite beam, from which the micromechanical model was created and experimentally validated. The effect of porosity was simulated using a resin-rich area in the microstructure and the results were compared to experimental work on samples containing pores.",
keywords = "Carbon fiber composite, Defect, Experimental mechanics, Modelling, Multiscale",
author = "Antin, {Kim Niklas} and Anssi Laukkanen and Tom Andersson and Danny Smyl and Pedro Vila{\cc}a",
year = "2019",
month = "6",
day = "12",
doi = "10.3390/ma12121885",
language = "English",
volume = "12",
journal = "Materials",
issn = "1996-1944",
publisher = "MDPI",
number = "12",

}

A multiscale modelling approach for estimating the effect of defects in unidirectional carbon fiber reinforced polymer composites. / Antin, Kim Niklas; Laukkanen, Anssi; Andersson, Tom; Smyl, Danny; Vilaça, Pedro (Corresponding Author).

In: Materials, Vol. 12, No. 12, 2885, 12.06.2019.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - A multiscale modelling approach for estimating the effect of defects in unidirectional carbon fiber reinforced polymer composites

AU - Antin, Kim Niklas

AU - Laukkanen, Anssi

AU - Andersson, Tom

AU - Smyl, Danny

AU - Vilaça, Pedro

PY - 2019/6/12

Y1 - 2019/6/12

N2 - A multiscale modelling approach was developed in order to estimate the effect of defects on the strength of unidirectional carbon fiber composites. The work encompasses a micromechanics approach, where the known reinforcement and matrix properties are experimentally verified and a 3D finite element model is meshed directly from micrographs. Boundary conditions for loading the micromechanical model are derived from macroscale finite element simulations of the component in question. Using a microscale model based on the actual microstructure, material parameters and load case allows realistic estimation of the effect of a defect. The modelling approach was tested with a unidirectional carbon fiber composite beam, from which the micromechanical model was created and experimentally validated. The effect of porosity was simulated using a resin-rich area in the microstructure and the results were compared to experimental work on samples containing pores.

AB - A multiscale modelling approach was developed in order to estimate the effect of defects on the strength of unidirectional carbon fiber composites. The work encompasses a micromechanics approach, where the known reinforcement and matrix properties are experimentally verified and a 3D finite element model is meshed directly from micrographs. Boundary conditions for loading the micromechanical model are derived from macroscale finite element simulations of the component in question. Using a microscale model based on the actual microstructure, material parameters and load case allows realistic estimation of the effect of a defect. The modelling approach was tested with a unidirectional carbon fiber composite beam, from which the micromechanical model was created and experimentally validated. The effect of porosity was simulated using a resin-rich area in the microstructure and the results were compared to experimental work on samples containing pores.

KW - Carbon fiber composite

KW - Defect

KW - Experimental mechanics

KW - Modelling

KW - Multiscale

UR - http://www.scopus.com/inward/record.url?scp=85067966159&partnerID=8YFLogxK

U2 - 10.3390/ma12121885

DO - 10.3390/ma12121885

M3 - Article

VL - 12

JO - Materials

JF - Materials

SN - 1996-1944

IS - 12

M1 - 2885

ER -