Comparison of Shearography to Scanning Laser Vibrometry as Methods for Local Stiffness Identification of Beams Vrije Universiteit Brussel
Local stiffness of Euler-Bernoulli beams can be identified by dividing the bending moment of a deformed beam by the local curvature. Curvature and moment distributions can be derived from the modal shape of a beam vibrating at resonance. In this article, the modal shape of test beams is measured by both scanning laser vibrometry (SLV) and shearography. Shearography is an interferometric optical method that produces full-field displacement ...