Double active thermographic inspection of additive manufacturing composites: numerical modelling and validation

Henrique V. Silva; Ana P. Martins; Miguel A. Machado; Telmo G. Santos; Marta S. Carvalho

doi:10.1016/j.measurement.2023.113212

Double active thermographic inspection of additive manufacturing composites: numerical modelling and validation

Henrique V. Silva, Ana P. Martins, Miguel A. Machado, Telmo G. Santos, Marta S. Carvalho

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Abstract

This study investigates the Non-Destructive Testing (NDT) inspection of 3D-printed fibre-reinforced polymers, comparing the conventional Active Transient Thermography (ATT) technique with a novel variant known as Double Active Transient Thermography (DATT). Finite element models for the simulation of both inspection techniques are validated by evaluating two statistical measures to correlate the numerical results with the experimental responses. The thermal contrast obtained with DATT was approximately twice the one obtained with ATT, for all tested samples. Numerical models allowed an insight evaluation of the heat dissipation along the thickness of the specimens, specifically around the fibres and the defects. These validated numerical models evidenced a relevant tool to predict the results of thermal contrast and to optimize the inspection parameters.

Original language	English
Article number	113212
Number of pages	8
Journal	Measurement: Journal of the International Measurement Confederation
Volume	218
DOIs	https://doi.org/10.1016/j.measurement.2023.113212
Publication status	Published - 15 Aug 2023

Keywords

Computational modelling
Double Active Transient Thermography (DATT)
Non-destructive testing (NDT)
Polymer-matrix composites (PMC)
Thermal analysis

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Double active thermographic inspection of additive manufacturingFinal published version, 4.76 MBLicence: CC BY

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title = "Double active thermographic inspection of additive manufacturing composites: numerical modelling and validation",

abstract = "This study investigates the Non-Destructive Testing (NDT) inspection of 3D-printed fibre-reinforced polymers, comparing the conventional Active Transient Thermography (ATT) technique with a novel variant known as Double Active Transient Thermography (DATT). Finite element models for the simulation of both inspection techniques are validated by evaluating two statistical measures to correlate the numerical results with the experimental responses. The thermal contrast obtained with DATT was approximately twice the one obtained with ATT, for all tested samples. Numerical models allowed an insight evaluation of the heat dissipation along the thickness of the specimens, specifically around the fibres and the defects. These validated numerical models evidenced a relevant tool to predict the results of thermal contrast and to optimize the inspection parameters.",

keywords = "Computational modelling, Double Active Transient Thermography (DATT), Non-destructive testing (NDT), Polymer-matrix composites (PMC), Thermal analysis",

author = "Silva, {Henrique V.} and Martins, {Ana P.} and Machado, {Miguel A.} and Santos, {Telmo G.} and Carvalho, {Marta S.}",

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year = "2023",

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doi = "10.1016/j.measurement.2023.113212",

language = "English",

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TY - JOUR

T1 - Double active thermographic inspection of additive manufacturing composites

T2 - numerical modelling and validation

AU - Silva, Henrique V.

AU - Martins, Ana P.

AU - Machado, Miguel A.

AU - Santos, Telmo G.

AU - Carvalho, Marta S.

PY - 2023/8/15

Y1 - 2023/8/15

N2 - This study investigates the Non-Destructive Testing (NDT) inspection of 3D-printed fibre-reinforced polymers, comparing the conventional Active Transient Thermography (ATT) technique with a novel variant known as Double Active Transient Thermography (DATT). Finite element models for the simulation of both inspection techniques are validated by evaluating two statistical measures to correlate the numerical results with the experimental responses. The thermal contrast obtained with DATT was approximately twice the one obtained with ATT, for all tested samples. Numerical models allowed an insight evaluation of the heat dissipation along the thickness of the specimens, specifically around the fibres and the defects. These validated numerical models evidenced a relevant tool to predict the results of thermal contrast and to optimize the inspection parameters.

AB - This study investigates the Non-Destructive Testing (NDT) inspection of 3D-printed fibre-reinforced polymers, comparing the conventional Active Transient Thermography (ATT) technique with a novel variant known as Double Active Transient Thermography (DATT). Finite element models for the simulation of both inspection techniques are validated by evaluating two statistical measures to correlate the numerical results with the experimental responses. The thermal contrast obtained with DATT was approximately twice the one obtained with ATT, for all tested samples. Numerical models allowed an insight evaluation of the heat dissipation along the thickness of the specimens, specifically around the fibres and the defects. These validated numerical models evidenced a relevant tool to predict the results of thermal contrast and to optimize the inspection parameters.

KW - Computational modelling

KW - Double Active Transient Thermography (DATT)

KW - Non-destructive testing (NDT)

KW - Polymer-matrix composites (PMC)

KW - Thermal analysis

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DO - 10.1016/j.measurement.2023.113212

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SN - 0263-2241

VL - 218

JO - Measurement: Journal of the International Measurement Confederation

JF - Measurement: Journal of the International Measurement Confederation

M1 - 113212

ER -

Double active thermographic inspection of additive manufacturing composites: numerical modelling and validation

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