Comparison of strain gauge technique and photoelastic coating method in the investigation procedure of femur prostheses

Borbás, Lajos and Thamm, Frigyes and Oláh, László (2006) Comparison of strain gauge technique and photoelastic coating method in the investigation procedure of femur prostheses. JOURNAL OF COMPUTATIONAL AND APPLIED MECHANICS, 7 (1). pp. 3-12. ISSN 1586-2070

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Abstract

Photoelastic coating was applied to investigate the contact stress distribution between the femur shaft and the drawn in prosthesis. To obtain an overall pattern of the stress distribution the investigated femur was placed on a turntable with axis parallel to the femur shaft. Fringe patterns obtained at different angular positions of the turntable were combined producing thus a flattened overall image of the whole surface of the femur shaft. The patterns proved to be much more instructive than measurements applying strain gages

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