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Proceedings Paper

Construction of a 100-metric-ton holographic table
Author(s): Leopold Pflug; Mauro Pedretti
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Paper Abstract

A 100-ton (metric) holographic table has ben built as a testing facility for the mechanical and civil engineering industry. The table is made of a rectangular concrete slab of 5 by 20 m and it is presented in both directions in order to achieve maximum stiffness and stability. Due to the large size and the loading capacity of this table, full scale examination of large specimens or heavy concrete elements can be performed by means of optical methods including holographic interferometry, speckle interferometry or high sensitivity moire. Rheological behavior, i.e. creep and shrinkage, induces redistribution of internal stresses. Scale effects blurry the actual phenomena if observed on a reduced size model. In order to manage a desirable 'Design by testing' such a facility allowing full scale testing certainly offers a very efficient tool.

Paper Details

Date Published: 17 September 1993
PDF: 5 pages
Proc. SPIE 1914, Practical Holography VII: Imaging and Materials, (17 September 1993); doi: 10.1117/12.155030
Show Author Affiliations
Leopold Pflug, Swiss Federal Institute of Technology (Switzerland)
Mauro Pedretti, Instituto Maccanica dei Materiali S. A. (Switzerland)


Published in SPIE Proceedings Vol. 1914:
Practical Holography VII: Imaging and Materials
Stephen A. Benton, Editor(s)

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