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Proceedings Paper

TV holography used in the study of failure of rocks and concrete
Author(s): Jan Tore Malmo; Eiolf Vikhagen; Ole Johan Lokberg
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Paper Abstract

The short exposure time and high framing rate of the TV-holography system allow for global interferometric measurements even in industrial environments. In this paper we report some experiences from failure tests on concrete and weak sedimentary rocks. In a set of rock cavity failure tests, TV-holography has been used to monitor the cavity deformations. The technique allows for a complete description of the continuous displacement and deformation of a surface, and has a potential to reveal important information about, e.g., symmetry-breaking processes. Combined with image processing, the technique has been used to study micro-cracks on the surface of concrete blocks during pressure testing. The purpose of these tests was to study the fracture mechanics of concrete, including crack initiation and propagation.

Paper Details

Date Published: 1 January 1992
PDF: 8 pages
Proc. SPIE 1553, Laser Interferometry IV: Computer-Aided Interferometry, (1 January 1992); doi: 10.1117/12.135320
Show Author Affiliations
Jan Tore Malmo, SINTEF Applied Physics/Norwegian Institute of Technology (Norway)
Eiolf Vikhagen, SINTEF Applied Physics/Norwegian Institute of Technology (Norway)
Ole Johan Lokberg, SINTEF Applied Physics/Norwegian Institute of Technology (Norway)

Published in SPIE Proceedings Vol. 1553:
Laser Interferometry IV: Computer-Aided Interferometry
Ryszard J. Pryputniewicz, Editor(s)

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