Quantitative NDE of Advanced Composites Using Ultrasonic Velocity Measurements

[+] Author and Article Information
R. A. Kline

School of Aerospace and Mechanical Engineering, The University of Oklahoma Norman, Okla. 73019

J. Eng. Mater. Technol 112(2), 218-222 (Apr 01, 1990) (5 pages) doi:10.1115/1.2903310 History: Received January 11, 1989; Online April 29, 2008


In this work, the use of ultrasonic velocity analysis for the quantitative nondestructive evaluation of the mechanical properties of composite laminates is discussed. The composite laminate is modeled as a layer or set of layers of transversely isotropic material of known orientation. The method described utilizes velocity measurements for ultrasonic wave propagation at multiple angles of incidence. Since the equations are algebraically cumbersome, a numerical procedure employing a commercially available nonlinear equation solving subroutine is utilized. Applications to composite laminates are presented.

Copyright © 1990 by The American Society of Mechanical Engineers
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