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An Array Measurement System for Thermoelastic Stress Analysis Pages: 10 Published: Jan 1997
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View License Agreement Source: STP1318-EB Abstract Thermoelastic Stress Analysis (TSA) is defined, and an overview is given to show its potentially wide applicability and brief history. A simplified calculation of instrumental response characteristics shows the substantial improvement in data acquisition speed that can be gained in a system using a staring array in comparison to that using a scanned detector. Descriptions are given of several methods which have been used to obtain data for thermoelastic stress analysis. Finally, image representations are presented of TSA data taken with a staring array imager showing the resolution attainable in practice using some laboratory fatigue samples and a prototype part. Keywords: thermoelastic stress analysis, full-field stress analysis, stress imaging, staring infrared detector arrays Paper ID: STP11901S Committee/Subcommittee: E08.03 DOI: 10.1520/STP11901S ASTM International is a member of CrossRef. | ||