Gies A A, Carter D R
J Biomech. 1982;15(4):297-303. doi: 10.1016/0021-9290(82)90175-0.
A strain gage based experimental method is presented which provides an alternative to use of area sectional properties for obtaining the cross sectional centroids, flexural rigidities and axial stiffness of whole bone specimens. While area sectional property computations require detailed records on the geometry of cross sections, the experimental method presented here requires only gage locations plus the applied loads and recorded strains. Both techniques are used to analyze the midshaft sectional properties of canine radii. The results demonstrate the advantage of the experimental method for the analysis of heterogeneous cross sections with an unknown distribution of bone elastic modulus. By applying the experimental and area methods together, effective elastic modulus values for the sections were obtained.
本文提出了一种基于应变片的实验方法，该方法为获取完整骨标本的横截面形心、抗弯刚度和轴向刚度提供了一种替代使用截面特性的方法。虽然截面特性计算需要详细的横截面几何记录，但本文提出的实验方法仅需要应变片位置以及施加的载荷和记录的应变。两种技术都用于分析犬桡骨中段的截面特性。结果表明，对于分析骨弹性模量分布未知的非均质截面，实验方法具有优势。通过将实验方法和截面方法结合使用，获得了各截面的有效弹性模量值。
