Characterization of elastic constants of anisotropic composites in compression using digital image correlation

Olli Orell; Jyrki Vuorinen; Jarno Jokinen; Heikki Kettunen; Pertti Hytönen; Jani Turunen; Mikko Kanerva

doi:10.1016/j.compstruct.2017.11.008

Characterization of elastic constants of anisotropic composites in compression using digital image correlation

Olli Orell, Jyrki Vuorinen, Jarno Jokinen, Heikki Kettunen, Pertti Hytönen, Jani Turunen, Mikko Kanerva

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Abstract

Experimental determination of elastic constants of anisotropic composite laminates in all orthogonal directions is generally a complex process. In this paper a simple direct technique to determine a broad set of elastic moduli is presented based on compression testing of a prism sample. Digital image correlation is used to measure the full-field deformations that allow the determination of Young's moduli and all six Poisson's ratios for the three orthogonal directions based on a single sample. Finite element model is used in evaluation of the effect of friction on the measured properties. In addition to quantitative characterization of the material properties, local strain mapping is used in qualitative evaluation of the sample structures.

Original language	English
Pages (from-to)	176-185
Number of pages	10
Journal	Composite Structures
Volume	185
Early online date	7 Nov 2017
DOIs	https://doi.org/10.1016/j.compstruct.2017.11.008
Publication status	Published - 2018
Publication type	A1 Journal article-refereed

Keywords

Digital image correlation
Elastic constants
Laminates
Microstructural analysis

Publication forum classification

Publication forum level 2

ASJC Scopus subject areas

Ceramics and Composites
Civil and Structural Engineering

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10.1016/j.compstruct.2017.11.008

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Accepted author manuscript, 1.05 MBLicence: CC BY-NC-ND

http://urn.fi/URN:NBN:fi:tty-201803051331

Cite this

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title = "Characterization of elastic constants of anisotropic composites in compression using digital image correlation",

abstract = "Experimental determination of elastic constants of anisotropic composite laminates in all orthogonal directions is generally a complex process. In this paper a simple direct technique to determine a broad set of elastic moduli is presented based on compression testing of a prism sample. Digital image correlation is used to measure the full-field deformations that allow the determination of Young's moduli and all six Poisson's ratios for the three orthogonal directions based on a single sample. Finite element model is used in evaluation of the effect of friction on the measured properties. In addition to quantitative characterization of the material properties, local strain mapping is used in qualitative evaluation of the sample structures.",

keywords = "Digital image correlation, Elastic constants, Laminates, Microstructural analysis",

author = "Olli Orell and Jyrki Vuorinen and Jarno Jokinen and Heikki Kettunen and Pertti Hyt{\"o}nen and Jani Turunen and Mikko Kanerva",

year = "2018",

doi = "10.1016/j.compstruct.2017.11.008",

language = "English",

volume = "185",

pages = "176--185",

journal = "Composite Structures",

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T1 - Characterization of elastic constants of anisotropic composites in compression using digital image correlation

AU - Orell, Olli

AU - Vuorinen, Jyrki

AU - Jokinen, Jarno

AU - Kettunen, Heikki

AU - Hytönen, Pertti

AU - Turunen, Jani

AU - Kanerva, Mikko

PY - 2018

Y1 - 2018

N2 - Experimental determination of elastic constants of anisotropic composite laminates in all orthogonal directions is generally a complex process. In this paper a simple direct technique to determine a broad set of elastic moduli is presented based on compression testing of a prism sample. Digital image correlation is used to measure the full-field deformations that allow the determination of Young's moduli and all six Poisson's ratios for the three orthogonal directions based on a single sample. Finite element model is used in evaluation of the effect of friction on the measured properties. In addition to quantitative characterization of the material properties, local strain mapping is used in qualitative evaluation of the sample structures.

AB - Experimental determination of elastic constants of anisotropic composite laminates in all orthogonal directions is generally a complex process. In this paper a simple direct technique to determine a broad set of elastic moduli is presented based on compression testing of a prism sample. Digital image correlation is used to measure the full-field deformations that allow the determination of Young's moduli and all six Poisson's ratios for the three orthogonal directions based on a single sample. Finite element model is used in evaluation of the effect of friction on the measured properties. In addition to quantitative characterization of the material properties, local strain mapping is used in qualitative evaluation of the sample structures.

KW - Digital image correlation

KW - Elastic constants

KW - Laminates

KW - Microstructural analysis

U2 - 10.1016/j.compstruct.2017.11.008

DO - 10.1016/j.compstruct.2017.11.008

M3 - Article

AN - SCOPUS:85033434793

SN - 0263-8223

VL - 185

SP - 176

EP - 185

JO - Composite Structures

JF - Composite Structures

ER -

Characterization of elastic constants of anisotropic composites in compression using digital image correlation

Abstract

Keywords

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ASJC Scopus subject areas

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