Abstract
An experimental technique based on image analysis is proposed for the measurement of the strain field in tubes subjected to lateral collapse. Data are numerically treated to reduce the experimental error, and a correction to account for the curvature of the profile is introduced. The results, also compared with others obtained with electrical strain gages, confirm the validity of an existing model for strain and crushing force prediction.
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Avalle, M., Goglio, L. Lateral compression of thin-walled tubes: Strain measurement by image analysis. Experimental Mechanics 39, 231–235 (1999). https://doi.org/10.1007/BF02323557
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DOI: https://doi.org/10.1007/BF02323557