Accuracy of beam theory for estimating bone tissue modulus and yield stress from 3-point bending tests on rat femora

• Published in: Journal of biomechanics Vol. 101; p. 109654
• Main Authors: Arias-Moreno, Andrés Julián, Ito, Keita, van Rietbergen, Bert
• Format: Journal Article
• Language: English
• Published: United States Elsevier Ltd 05.03.2020; Elsevier Limited
• Subjects: Aging; Animals; Beam theory; Beam theory (structures); Bend strength; Bend tests; Biomechanical Phenomena; Bone strength; Bones; Computed tomography; Elastic Modulus; Femur - cytology; Femur - diagnostic imaging; Femur - physiology; Mathematical analysis; Mechanical analysis; Mechanical Phenomena; Mechanical properties; Medical research; Mice; Micro-FE; Modulus of elasticity; Rat femur; Rats; Regression analysis; Stiffness; Strength estimation; Stress, Mechanical; Studies; Three-point bending; X-Ray Microtomography; Yield strength; Yield stress; Switzerland; Rat femur; Micro-FE; Strength estimation; Three-point bending; Beam theory

Mechanical analysis of animal long bones often makes use of beam theory to estimate tissue properties from bending tests. An earlier study (van Lenthe et al., 2008) found that beam theory leads to a considerable underestimation of the Young's modulus of mice femora. However, we hypothesized tha...