1 January 1992 TV holography used in the study of failure of rocks and concrete
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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.
© (1992) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jan Tore Malmo, Jan Tore Malmo, Eiolf Vikhagen, Eiolf Vikhagen, Ole Johan Lokberg, Ole Johan Lokberg, } "TV holography used in the study of failure of rocks and concrete", Proc. SPIE 1553, Laser Interferometry IV: Computer-Aided Interferometry, (1 January 1992); doi: 10.1117/12.135320; https://doi.org/10.1117/12.135320


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