1 May 2004 Investigation of fracture mechanisms in resin concrete using spatially multiplexed digital Fresnel holograms
Author Affiliations +
Abstract
A digital twin Mach-Zehnder holographic interferometer is presented and applied to the investigation of fracture mechanisms in resin concrete submitted to a three-point flexural loading. The double interferometric setup allows spatial multiplexing for a simultaneous double sensitivity measurement. The component determination is obtained from two different illumination directions giving two sensitivity vectors. The numerical reconstruction of the object is performed following the discrete Fresnel transform. We investigate the image formation by merging analogic and discrete Fourier calculations in a smooth reference plane wave scheme. We examine the complex relation between the original object and the reconstructed one and the object localization is derived. Experimental results are presented and exploited to obtain the evolution of the crack tip propagation during the test.
© (2004) Society of Photo-Optical Instrumentation Engineers (SPIE)
Pascal Picart, Pascal Picart, Boubakar Diouf, Boubakar Diouf, Eric Lolive, Eric Lolive, Jean-Marie Berthelot, Jean-Marie Berthelot, "Investigation of fracture mechanisms in resin concrete using spatially multiplexed digital Fresnel holograms," Optical Engineering 43(5), (1 May 2004). https://doi.org/10.1117/1.1668282 . Submission:
JOURNAL ARTICLE
8 PAGES


SHARE
RELATED CONTENT

Principles of digital holographic interferometry
Proceedings of SPIE (June 29 1998)
Single-exposure color digital holography
Proceedings of SPIE (November 17 2010)
Microstructure testing with digital holography
Proceedings of SPIE (November 20 2009)
Resolution-enhanced approaches in digital holography
Proceedings of SPIE (June 17 2009)

Back to Top