Photoelastic stress analysis of internal fixation techniques for femur shaft crack

Tong Liu; Gin Boay Chai; Anand Krishna Asundi; Arumaaran Murugiah

doi:10.1117/12.429618

13 June 2001 Photoelastic stress analysis of internal fixation techniques for femur shaft crack

Tong Liu, Gin Boay Chai, Anand Krishna Asundi, Arumaaran Murugiah

Proceedings Volume 4317, Second International Conference on Experimental Mechanics; (2001) https://doi.org/10.1117/12.429618
Event: Second International Conference on Experimental Mechanics, 2000, Singapore, Singapore

Abstract

In this paper, a photoelastic stress analysis is carried out for a cracked femur bone with compression plate fixation. A loading rig has been designed and manufactured to apply forces in the physical directions on the 2D modal of the femur bone based on a single-leg-stance. Three femur models made of photoelastic materials had been fabricated with three configurations and loaded. A recently developed three- load to phase shifting method is adopted to extract the full-field quantitative information from the fringe patterns of the loaded models. A comparison shows that the configuration where the screws point away from each other had the best effectiveness.

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Tong Liu, Gin Boay Chai, Anand Krishna Asundi, and Arumaaran Murugiah "Photoelastic stress analysis of internal fixation techniques for femur shaft crack", Proc. SPIE 4317, Second International Conference on Experimental Mechanics, (13 June 2001); https://doi.org/10.1117/12.429618

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KEYWORDS

Photoelasticity

Stress analysis

Bone

Fringe analysis

Manufacturing

Design for manufacturability

Digital photography

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