Ultrasonic Procedures for the Determination of Bond Strength.

摘要

A completely automated ultrasonic inspection system has been developed for predicting bond strength in metal to metal adhesively bonded step-lap joints. Results to date appear promising for solving this difficult problem of predicting adhesive bond performance. A resource base developed in earlier years in experimental technology, theoretical ultrasonic wave interaction studies with adhesive bond models, manufacturing technology, shear stress distribution analysis has been incorporated into a pattern recognition program of study. Such topics as nearest neighbor philosophy, fuzzy logic analysis, probability density, function analysis, and adaptive search and learning techniques for linear and nonlinear models are currently being investigated. (Author)