Sonic IR has shown potential as a viable nondestructive inspection technique for crack detection by demonstrating that clearly identifiable signals can be generated where known cracks exist in certain structures1,2. However, before a technique can be used in a field environment, the factors that affect the reproducibility of the technique must be evaluated and their effect on the results of the technique understood. This will enable the control of these factors in the execution of an inspection procedure at, for example, an Air Force Depot Maintenance facility. In this program, sponsored by the Air Force Research Laboratory, we are taking a Design of Experiments (DoE) approach to determine the effect of several key variables on the results obtained from Sonic IR testing. A set of small samples with known fatigue cracks was tested according to a statistically designed test matrix. The design of this test matrix, the experimental setup, the test results, and conclusions will be presented.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.