Determination of the Modulus of Elasticity by Bending Tests of Specimens with Nonuniform Cross Section

Abstract Background Bending tests offer technical advantages when material testing is performed to determine the modulus of elasticity. In biomechanical studies, beam-like cortical bone specimens subjected flexural loading are usually characterized by nonuniform cross-sectional properties along beam axis and a comparatively large spatial variation local properties. Objective A suitable evaluation method for determining average elasticity within volume with cross section was be identified. Methods total 138 samples human pelvic were extracted tested under loading. Different methods, all based on linear-elastic theory beams, applied basis measured deformations, results compared. Some these methods utilized midspan deflection, others used elastic curve obtained digital image correlation. Results The showed that it not appropriate from only deflection. consideration deflections at multiple points recommended. Conclusions An fitting analytically determined its considered most specimen.