Numerical Analysis of the Lamb Metacarpal Bone: Approximation of Bending Tests

Abstract

In the development of new strategies for fracture fixation, new methods have to be tested biomechanically under in vitro conditions before clinical trials can be performed. Several recent developments, including tensile, compressive, and bending tests fresh whole bone specimens, offer the possibility to understand animal bones mechanical behavior. Therefore, the aims of the present study were to determine the effects of three point bending tests on the lamb metacarpal bones at different speeds and determine the mechanical properties of bone and to compare these properties with the finite element analysis of the tests. 12 specimens were obtained from 1 year old Ankara curly lambs. Three point bending tests were conducted using three different compression speeds to assess and compare bone fracture properties. From the test results bending moments, stresses, strains and deformations were calculated for three different compression speeds. Finite Element Analysis results were compared to the test results. Because of the use fresh bone specimens of an animal part are used like in vivo tests in biomechanical studies, investigating failure loads of the metacarpus by bending tests and numerical analysis are guiding for clinical operations and computer simulations.

Keywords

• Finite element analysis,bending test,lamb metacarpal bone,biomechanics

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