Systems and methods for ultrasonically evaluating structural properties

摘要

Systems and methods for ultrasonically evaluating one or more microstructural material properties of a structural specimen are disclosed. An example system comprises an ultrasonic sensor unit including a plurality of ultrasonic transducers that generate ultrasonic backscatter within the specimen, and an evaluation module that performs an autocorrelation function on the ultrasonic backscatter data. An autocorrelation algorithm is configured to execute a single scattering response (SSR) model that computes second order grain statistics of the structural specimen.

主权项

1. A method for ultrasonically determining one or more microstructural material properties of a structural specimen, comprising:
a. transmitting a plurality of pulsed ultrasonic waves to a single point on a structural specimen; b. sensing ultrasonic backscatter signals responsive to the pulsed ultrasonic waves; c. selecting a time window for analyzing the ultrasonic backscatter signals; performing an autocorrelation function on the time-windowed ultrasonic backscatter signals wherein the autocorrelation function comprises an autocorrelation algorithm configured to analyze a single scattering response model further comprising a second-order elastic modulus and compliance tensor and a third-order elastic modulus; and d. determining one or more microstructural material properties of the structural specimen.