Impact damage detection in composite plates using deflectometry and the Virtual Fields Method

C. Devivier; F. Pierron; M. R. Wisnom

doi:10.1016/j.compositesa.2013.01.011

Impact damage detection in composite plates using deflectometry and the Virtual Fields Method

C. Devivier^*, F. Pierron, M. R. Wisnom

^*Corresponding author for this work

Research output: Contribution to journal › Article (Academic Journal) › peer-review

41 Citations (Scopus)

Abstract

This paper presents a new method for detecting damage in layered composite materials using a simple measurement technique, deflectometry. The aim is to locate the damage in a specimen and provide a "signature" from the measured surface slopes. Firstly, this method is applied to plate specimens using numerical and experimental data. Secondly, damage indicator based on a new application of the virtual fields method to compute local apparent gaps in equilibrium is presented and used to process the measurements on plates. It is shown that the damage indicator is very sensitive, allowing detection of damage that is difficult to identify directly from the strain maps. (C) 2013 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	201-218
Number of pages	18
Journal	Composites Part A: Applied Science and Manufacturing
Volume	48
Issue number	1
DOIs	https://doi.org/10.1016/j.compositesa.2013.01.011
Publication status	Published - 25 Mar 2013

Keywords

CARBON-FIBER COMPOSITES
INVERSE METHOD
Non-destructive testing
ACOUSTIC MICROSCOPY
STIFFNESS
CFRP
PANELS
Damage mechanics
IDENTIFICATION
LOW-VELOCITY IMPACT
COMPUTED-TOMOGRAPHY
Layered structures
Delamination

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title = "Impact damage detection in composite plates using deflectometry and the Virtual Fields Method",

abstract = "This paper presents a new method for detecting damage in layered composite materials using a simple measurement technique, deflectometry. The aim is to locate the damage in a specimen and provide a {"}signature{"} from the measured surface slopes. Firstly, this method is applied to plate specimens using numerical and experimental data. Secondly, damage indicator based on a new application of the virtual fields method to compute local apparent gaps in equilibrium is presented and used to process the measurements on plates. It is shown that the damage indicator is very sensitive, allowing detection of damage that is difficult to identify directly from the strain maps. (C) 2013 Elsevier Ltd. All rights reserved.",

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author = "C. Devivier and F. Pierron and Wisnom, {M. R.}",

year = "2013",

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doi = "10.1016/j.compositesa.2013.01.011",

language = "English",

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T1 - Impact damage detection in composite plates using deflectometry and the Virtual Fields Method

AU - Devivier, C.

AU - Pierron, F.

AU - Wisnom, M. R.

PY - 2013/3/25

Y1 - 2013/3/25

N2 - This paper presents a new method for detecting damage in layered composite materials using a simple measurement technique, deflectometry. The aim is to locate the damage in a specimen and provide a "signature" from the measured surface slopes. Firstly, this method is applied to plate specimens using numerical and experimental data. Secondly, damage indicator based on a new application of the virtual fields method to compute local apparent gaps in equilibrium is presented and used to process the measurements on plates. It is shown that the damage indicator is very sensitive, allowing detection of damage that is difficult to identify directly from the strain maps. (C) 2013 Elsevier Ltd. All rights reserved.

AB - This paper presents a new method for detecting damage in layered composite materials using a simple measurement technique, deflectometry. The aim is to locate the damage in a specimen and provide a "signature" from the measured surface slopes. Firstly, this method is applied to plate specimens using numerical and experimental data. Secondly, damage indicator based on a new application of the virtual fields method to compute local apparent gaps in equilibrium is presented and used to process the measurements on plates. It is shown that the damage indicator is very sensitive, allowing detection of damage that is difficult to identify directly from the strain maps. (C) 2013 Elsevier Ltd. All rights reserved.

KW - CARBON-FIBER COMPOSITES

KW - INVERSE METHOD

KW - Non-destructive testing

KW - ACOUSTIC MICROSCOPY

KW - STIFFNESS

KW - CFRP

KW - PANELS

KW - Damage mechanics

KW - IDENTIFICATION

KW - LOW-VELOCITY IMPACT

KW - COMPUTED-TOMOGRAPHY

KW - Layered structures

KW - Delamination

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U2 - 10.1016/j.compositesa.2013.01.011

DO - 10.1016/j.compositesa.2013.01.011

M3 - Article (Academic Journal)

SN - 1359-835X

VL - 48

SP - 201

EP - 218

JO - Composites Part A: Applied Science and Manufacturing

JF - Composites Part A: Applied Science and Manufacturing

IS - 1

ER -

Impact damage detection in composite plates using deflectometry and the Virtual Fields Method

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Keywords

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