Combining thermography and stress analysis for tensile testing in a single sensor

Fabian Göttfert; Holger Sparr; Matthias Ziegenhorn; Gunnar Dammass; Matthias Krauß

doi:10.1117/12.2618947

27 May 2022 Combining thermography and stress analysis for tensile testing in a single sensor

Fabian Göttfert, Holger Sparr, Matthias Ziegenhorn, Gunnar Dammass, Matthias Krauß

Proceedings Volume 12109, Thermosense: Thermal Infrared Applications XLIV; 121090A (2022) https://doi.org/10.1117/12.2618947
Event: SPIE Defense + Commercial Sensing, 2022, Orlando, Florida, United States

Abstract

We combine image correlation and thermography to measure the two-dimensional strain field along with the temperature distribution of a specimen in a tensile testing machine. Both methods have been combined before, yet they usually rely on different imaging devices, requiring the strain and temperature data to be aligned and parallax-corrected in post-processing. In our novel approach, we perform the image correlation directly on the thermography data – thus reducing the complexity of the measurement setup significantly. We demonstrate the method by quantifying the stress-strain-temperature relation of localized deformation bands in aluminum.

Conference Presentation

Citation Download Citation

Fabian Göttfert, Holger Sparr, Matthias Ziegenhorn, Gunnar Dammass, and Matthias Krauß "Combining thermography and stress analysis for tensile testing in a single sensor", Proc. SPIE 12109, Thermosense: Thermal Infrared Applications XLIV, 121090A (27 May 2022); https://doi.org/10.1117/12.2618947

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