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research-article

The added value of infrared thermography to assess the impact performance of composites

[+] Author and Article Information
Simone Boccardi

Department of Industrial Engineering - Aerospace Division, University of Naples Federico II, Naples, Italy
simone.boccardi@unina.it

Natalino D Boffa

Department of Industrial Engineering - Aerospace Division, University of Naples Federico II, Naples, Italy
natalinodaniele.boffa@unina.it

Giovanni M Carlomagno

Department of Industrial Engineering - Aerospace Division, University of Naples Federico II, Naples, Italy
carmagno@unina.it

Carosena Meola

Department of Industrial Engineering - Aerospace Division, University of Naples Federico II, Naples, Italy
carmeola@unina.it

Fabrizio Ricci

Department of Industrial Engineering - Aerospace Division, University of Naples Federico II, Naples, Italy
fabricci@unina.it

Pietro Russo

Institute for Polymers, Composites and Biomaterials, National Council of Research, Pozzuoli (Na), Italy
pietro.russo@unina.it

Giorgio Simeoli

Institute for Polymers, Composites and Biomaterials, National Council of Research, Pozzuoli (Na), Italy
giorgio.simeoli@unina.it

1Corresponding author.

ASME doi:10.1115/1.4038577 History: Received August 30, 2017; Revised November 13, 2017

Abstract

Composite materials are becoming ever more popular in an increasing number of applications. This thanks to their many advantages, amongst others the possibility to create a new material of given characteristics in a quite simple way by changing either the type of matrix, or reinforcement. Once a new material is created it is necessary to characterize it to verify its suitability for a specific exploitation. In this context, infrared thermography (IRT) represents a viable means since it is non-contact, non-intrusive and can be used either for non-destructive evaluation to detect manufacturing defects, or fatigue induced degradation, or else for monitoring online the response to applied loads. In this work, IRT is used to investigate different types of composite materials which are based on either a thermoset, or a thermoplastic matrix, which may be neat, or modified by addition of a percentage of a specific compatibilizing agent, and reinforced with carbon, glass, or jute fibers. IRT is used with a twofold function. First, for non-destructive evaluation, with the lock-in technique, before and after loading to either assure absence of manufacturing defects, or discover the damage caused by the loads. Second, for visualization of thermal effects, which develop when the material is subjected to impact. The obtained results show that it is possible to follow online what happens to the material (bending, delamination and eventual failure) under impact and get information, which may be valuable to deepen the complex impact damaging mechanisms of composites.

Copyright (c) 2017 by ASME
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