Location

Williamsburg, VA

Start Date

1-1-1988 12:00 AM

Description

During the rapid cyclic loading of a structure (≥ .5 Hz), the cyclic variation of surface temperature can be measured with infrared radiometry. The temperature variation is related to the reversible, adlabatic deformation of the material. Adiabatic thermography differs from disslpative thermography, where temperature variations are associated primarily with dissipated energy rather than stored energy. The radiometer system used in the present investigation is capable of resolving local stresses that reflect global stress distributions and macroscopic variations in material properties, including flaws and damage. The present paper emphasizes fundamental aspects of the technique for the nondestructive evaluation of fiber-reinforced composite laminates.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

7B

Chapter

Chapter 5: Adhesive Bonds and Composites

Section

Composites—Defects

Pages

1109-1116

DOI

10.1007/978-1-4613-0979-6_28

Language

en

File Format

application/pdf

Share

COinS
 
Jan 1st, 12:00 AM

Nondestructive Evaluation of Fiber Composite Laminates by Thermoelastic Emission

Williamsburg, VA

During the rapid cyclic loading of a structure (≥ .5 Hz), the cyclic variation of surface temperature can be measured with infrared radiometry. The temperature variation is related to the reversible, adlabatic deformation of the material. Adiabatic thermography differs from disslpative thermography, where temperature variations are associated primarily with dissipated energy rather than stored energy. The radiometer system used in the present investigation is capable of resolving local stresses that reflect global stress distributions and macroscopic variations in material properties, including flaws and damage. The present paper emphasizes fundamental aspects of the technique for the nondestructive evaluation of fiber-reinforced composite laminates.