Accession Number:

ADA125141

Title:

Vibrothermography: Investigation and Development of a New Nondestructive Evaluation Technique.

Descriptive Note:

Final rept. 1 Jan 79-30 Sep 82,

Corporate Author:

VIRGINIA POLYTECHNIC INST AND STATE UNIV BLACKSBURG DEPT OF ENGINEERING SCIENCE AND MECHANICS

Report Date:

1983-01-01

Pagination or Media Count:

15.0

Abstract:

A summary is presented of the major findings of a program whose objective was to investigate the phenomenon of preferential heat generation around damaged regions in materials subjected to mechanical vibrations and to develop an understanding of the mechanisms involved in this process. Vibrothermography is a nondestructive inspection technique based upon the utilization of this phenomenon. It has been found that this technique has much potential for inspecting composite materials. A significant amount of knowledge has been gained concerning the nature of the heat generation process and the relation of the frequency dependence of the heat patterns to the mechanical excitations. Author

Subject Categories:

  • Laminates and Composite Materials
  • Test Facilities, Equipment and Methods
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE