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Projection-Based Measurement and Identification

  • Clément JailinEmail author
  • Ante Buljac
  • Amine Bouterf
  • François Hild
  • Stéphane Roux
Conference paper
Part of the Conference Proceedings of the Society for Experimental Mechanics Series book series (CPSEMS)

Abstract

A recently developed Projection-based Digital Image Correlation (P-DVC) method is here extended to 4D (space and time) displacement field measurement and mechanical identification based on a single radiograph per loading step instead of volumes as in standard DVC methods. Two levels of data reductions are exploited, namely, reduction of the data acquisition (and time) by a factor of 1000 and reduction of the solution space by exploiting model reduction techniques. The analysis of a complete tensile elastoplastic test composed of 127 loading steps performed in 6 min is presented. The 4D displacement field as well as the elastoplastic constitutive law are identified.

Keywords

Image-based identification Model reduction Fast 4D identification In-situ tomography measurements 

Notes

Acknowledgements

This work has benefited from the support of the French “Agence Nationale de la Recherche” through the “Investissements d’avenir” Program under the reference ANR-10-EQPX-37 MATMECA, and ANR-14-CE07-0034-02 COMINSIDE.

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Copyright information

© Society for Experimental Mechanics, Inc. 2020

Authors and Affiliations

  • Clément Jailin
    • 1
    • 2
    Email author
  • Ante Buljac
    • 1
  • Amine Bouterf
    • 1
  • François Hild
    • 1
  • Stéphane Roux
    • 1
  1. 1.LMT (ENS Paris-Saclay/CNRS/Univ.Paris-Saclay)CachanFrance
  2. 2.Safran Aircraft Engines—SAERond-Point René RavaudRéauFrance

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