Quantitative strain and slope evaluation on a double lap joint tensile test using ESPSI

J. Molimard; D. Bounda; A. Vautrin

doi:10.1117/12.695861

15 September 2006 Quantitative strain and slope evaluation on a double lap joint tensile test using ESPSI

J. Molimard, D. Bounda, A. Vautrin

Proceedings Volume 6341, Speckle06: Speckles, From Grains to Flowers; 63412R (2006) https://doi.org/10.1117/12.695861
Event: Speckle06: Speckles, From Grains to Flowers, 2006, Nimes, France

Abstract

The present study is based on the use of electronical speckle pattern shearing interferometry (ESPSI) on a double lap joint, the joined parts being two steel blocks and two composite plates. ESPSI is used to investigate de strain maps close to the end of the bonding in the center part of the specimen. The ESPSI set-up allows to get the full field strain and slope maps of a given surface. Its architecture is based on optical fibres which gives a portable assembly that can be used in a civil/mechanical engineering laboratory. This presentation emphases the advantages of such a method and its performances. Last some results are given and compared to an analytical approach.

Citation Download Citation

J. Molimard, D. Bounda, and A. Vautrin "Quantitative strain and slope evaluation on a double lap joint tensile test using ESPSI", Proc. SPIE 6341, Speckle06: Speckles, From Grains to Flowers, 63412R (15 September 2006); https://doi.org/10.1117/12.695861

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