A Comparative Experimental Analysis of Flexural Performance of Stainless Steel and CFRP Bone Plates under Four-Point Bending

Authors : Ahmet Çetin

Pages : 915-925

Doi:10.21605/cukurovaumfd.1772159

View : 50 | Download : 74

Publication Date : 2025-12-29

Article Type : Research Paper

Abstract :Metal bone plates are one of the most common clinical applications for fracture fixation; however, optimization of the stiffness-to-weight ratio is often overlooked. This study compared 316L stainless steel plates and lightweight carbon fiber-reinforced polymer (CFRP) plates of identical geometry. The plates were tested using the standard four-point bending test in both short and long configurations. Stiffness and bending moment parameters were obtained from load-displacement curves, and specific stiffness and specific moment were also determined. CFRP plates demonstrated higher specific bending stiffness, while steel exhibited higher absolute stiffness. The short CFRP plate exhibited reduced stiffness attributable to a net loss of cross-sectional area near the hole. The mechanical findings suggest that CFRP is a suitable material for designs that prioritize stiffness-to-mass performance, particularly in elongated plates when the connection-element region is considered a primary design feature.
Keywords : CFRP kemik plakaları, 316L paslanmaz çelik kemik plakaları, Dört noktadan bükülme, Sertlik-ağırlık oranı.

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