Location

Brunswick, ME

Start Date

1-1-1992 12:00 AM

Description

Among all the photothermal techniques that have appeared since some years, the photothermal radiometry is very attractive because of its noncontact and rapid-scanning ability [1,2]. In our laboratory, we developed pulsed stimulated infrared (IR) thermography [3]. Due to the relatively low refreshment frequency of the currently used IR cameras, the application of the method was restricted to low thermal conductors. In particular, we applied it to carbon/epoxy composites [4,5]. Some new developments of the data reduction procedure were presented last year [6] to use this technique with good heat conductors. Satisfactory results were obtained in the case of delaminations in C/C composites. We present here an improvement of this data reduction procedure which is able now to work with any kind of material. We will focus our attention on the especially difficult case of the characterization of adhesive joints in metallic structures.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

11A

Chapter

Chapter 1: Fundamentals of Standard Techniques

Section

Thermal Techniques

Pages

465-470

DOI

10.1007/978-1-4615-3344-3_59

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Bonds Nde Using Stimulated Infrared Thermography

Brunswick, ME

Among all the photothermal techniques that have appeared since some years, the photothermal radiometry is very attractive because of its noncontact and rapid-scanning ability [1,2]. In our laboratory, we developed pulsed stimulated infrared (IR) thermography [3]. Due to the relatively low refreshment frequency of the currently used IR cameras, the application of the method was restricted to low thermal conductors. In particular, we applied it to carbon/epoxy composites [4,5]. Some new developments of the data reduction procedure were presented last year [6] to use this technique with good heat conductors. Satisfactory results were obtained in the case of delaminations in C/C composites. We present here an improvement of this data reduction procedure which is able now to work with any kind of material. We will focus our attention on the especially difficult case of the characterization of adhesive joints in metallic structures.