Active Thermografy as a Method for Non-destructive Testing of Polymer Composite Materials

2021 ◽  
Vol 16 (2) ◽  
pp. 5-9
Author(s):  
Eva Popardovská ◽  
◽  
Vladimír Popardovský ◽  
Keyword(s):  
Composite Materials ◽  
Real Time ◽  
Material Surface ◽  
Non Destructive Testing ◽  
Ir Thermography ◽  
Testing Methods ◽  
Destructive Testing ◽  
Thermal Fields ◽  
Active Thermography ◽  
Non Destructive

Infrared (IR) thermography is a method for imaging thermal fields on the target surfaces in real time. It is a noncontact and non-destructive method of obtaining thermogram of tested material surface or inside of it. We can divide the IR thermographic testing methods into two basic groups – passive and active thermography. This article introduces a basic overview of IR active thermography.

Non-destructive testing of composite materials by means of active thermography-based tools

2015 ◽  
Vol 71 ◽  
pp. 113-120 ◽  
Author(s):  
Miguel Lizaranzu ◽  
Alberto Lario ◽  
Agustín Chiminelli ◽  
Ibán Amenabar
Keyword(s):  
Composite Materials ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
Active Thermography ◽  
Non Destructive

scholarly journals Comparison of Pulse Thermography (PT) and Step Heating (SH) Thermography in Non-Destructive Testing of Unidirectional GFRP Composites

2019 ◽  
Vol 2019 (11) ◽  
pp. 87-102
Author(s):  
Paulina Kamińska ◽  
Jarosław Ziemkiewcz ◽  
Piotr Synaszko ◽  
Krzysztof Dragan
Keyword(s):  
Composite Materials ◽  
Glass Fiber ◽  
Polymer Composites ◽  
Non Destructive Testing ◽  
Gfrp Composites ◽  
Destructive Testing ◽  
Pulsed Thermography ◽  
Active Thermography ◽  
Step Heating ◽  
Non Destructive

AbstractThis paper presents two techniques of active thermography i.e. the pulsed thermography technique and the step heating technique. The aim of this article is to compare these two techniques and present the possibilities, advantages and limitations of their use in the context of non-destructive testing of composite materials. The experimental section presents the results of tests carried out on samples of the polymer composites reinforced with glass fiber.

Estimation of Thickness of Concrete Slab Members Using Impact Echo Method

2014 ◽  
Vol 605 ◽  
pp. 139-142
Author(s):  
Seong Uk Hong ◽  
Yong Taeg Lee ◽  
Seung Hun Kim ◽  
J.H. Na
Keyword(s):  
Concrete Slab ◽  
Hardness Test ◽  
Pulse Velocity ◽  
Non Destructive Testing ◽  
Testing Methods ◽  
Destructive Testing ◽  
Impact Echo ◽  
Maintenance And Repair ◽  
Non Destructive ◽  
Impact Echo Method

Recently, the interest in maintenance and repair of existing concrete structures have increased, and it is typical to use non-destructive testing methods such as rebound hardness test or ultrasonic pulse velocity method to execute maintenance and repair of structures efficiently. Many non-destructive testing methods are being used in practice such as at construction sites, but verification for site applications are quite inadequate. Thus, this study intends to evaluate the applicability of Impact Echo Method which is one of the non-destructive testing methods using stress wave. Total of four specimens were planned and produced. The thickness of concrete slab members was estimated using I.E(OLSENs Freedom Data PC with Win.TFS Software Version 2.5.2). The estimated materials of concrete members by IE was found to be IE-1 specimen 178mm, IE-2 specimen 197mm, IE-3 specimen 191mm, and IE-4 specimen 263mm, and the error rate was found to be 4.22%~18.67% (average 9.6%), showing that they are relatively well in agreement. In this study, the experiments were executed with the objective of estimating the thickness of concrete slab members using Impact Echo Method. Through this study, the applicability of thickness estimation in concrete slab members using impact echo method could be confirmed.

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