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*

*Tämän työn vastaava kirjoittaja

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

3 Sitaatiot (Scopus)
83 Lataukset (Pure)

Abstrakti

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.

AlkuperäiskieliEnglanti
Artikkeli2885
JulkaisuMaterials
Vuosikerta12
Numero12
DOI - pysyväislinkit
TilaJulkaistu - 12 kesäkuuta 2019
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

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