Experimental and Theoretical Assessment of a New Technique for the Non-Destructive Evaluation of Laminated Panels.
Abstract
The goal of the present research project was to evaluate a potential method of edge flaw detection in laminated structures. This method uses miniature dynamic force transducers to detect the changes in loading history arising from the (very low level) impact of steel spheres on the transducer, which is located on the surface of the examined object. A theoretical and experimental analysis of the low frequency vibration response of bonded joints showed that it is possible to distinguish between mechanically sound and debonded specimen using a low frequency analysis. This analysis has shown that it is possible to construct a field-usable instrument that would permit rapid inspection of bonded structures for degrading conditions that occur at the edges of bonded joints. This analysis is applicable to both composite and metal laminated structures. Keywords: Adhesive bond quality control; Laminated panel quality control; Plate waves; Finite element modeling; Laminates; Laminated composite materials.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 21, 1985
- Accession Number
- ADA155622
Entities
People
- V. H. Kenner
Organizations
- Ohio State University