Detection and Characterization of Damage in Thick Composites,
Abstract
An ultrasonic experimental technique has been combined with an analytical method to characterize the average spacing of transverse matrix cracks in the center laminate of a composite plate. For through transmission, the transmitted amplitude has been measured as a function of the number of cracks within the ultrasonic beam. Results based on an analytical model show excellent agreement with the experimental results. The spacing of the cracks which can be determined by the method of this paper, is directly related to the residual strength of the composite specimen. Keywords: fiber-reinforced composite, transverse matrix cracking, ultrasonics, detection.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1986
- Accession Number
- ADA175939
Entities
People
- G. Kechter
- I. M. Daniel
- Jan D. Achenbach
- S. C. Wooh
Organizations
- Northwestern University