Speckle photography in biomechanical testing

Henryk T. Kasprzak; Halina Podbielska M.D.

doi:10.1117/12.167444

1 February 1994 Speckle photography in biomechanical testing

Henryk T. Kasprzak, Halina Podbielska M.D.

Author Affiliations +

Proceedings Volume 2083, Microscopy, Holography, and Interferometry in Biomedicine; (1994) https://doi.org/10.1117/12.167444
Event: Europto Biomedical Optics '93, 1993, Budapest, Hungary

Abstract

The application of speckle photography in biomechanical testing of bones and surgical fixing devices is presented. Double-exposure speckle photography is used for measuring the in-plane deformation of broken lower leg bones supported with different fixing devices under axial loading. An osteosynthesis plate, an external fixator, and an intramedullar nail mounted on the tibia shaft are tested. The results for different loading conditions are analyzed and compared with those obtained by holographic interferometry. Further, the human hyoid bone is investigated by this method. The load is applied to the anterior surface of the body of the bone. All tested specimen show an asymmetric displacement, the greatest in a plane vertical to the load. An evaluation of fracture behavior can be done from the displacement pattern.

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Henryk T. Kasprzak and Halina Podbielska M.D. "Speckle photography in biomechanical testing", Proc. SPIE 2083, Microscopy, Holography, and Interferometry in Biomedicine, (1 February 1994); https://doi.org/10.1117/12.167444

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