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|Title:||Surface Strain Measurements Using a 3D Scanning Laser Vibrometer|
|Citation:||Experimental Mechanics, 2012; 52(7):805-815|
|Publisher:||Sage Publications Inc|
|H. Weisbecker, B. Cazzolato, S. Wildy, S. Marburg, J. Codrington and A. Kotousov|
|Abstract:||Three-dimensional scanning laser vibrometers enable extremely accurate non-contact measurement of the three-dimensional displacements on the surface of structures. This paper looks at the feasibility of using such a scanning laser vibrometer for the noncontact measurement of dynamic strain fields across the surface of a planar structure subjected to in-plane loading. Issues such as laser head alignment and choice of differentiation filter parameters are discussed. Finally,experimental results of two test specimens are presented which clearly demonstrate the significant potential of this new experimental technique as well as highlighting several limitations.|
|Keywords:||3D laser scanning vibrometry; displacement; strain; optical measurements|
|Rights:||© Society for Experimental Mechanics 2011|
|Appears in Collections:||Mechanical Engineering publications|
Materials Research Group publications
Environment Institute publications
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