A method of data analysis for a set of elastic constant measurements is applied to data bases for wood and cancellous bone. For these materials the identification of the type of elastic symmetry is complicated by the variable composition of the material. The data analysis method permits the identification of the type of elastic symmetry to be accomplished independent of the examination of the variable composition. This method of analysis may be applied to any set of elastic constant measurements, but is illustrated here by application to hardwoods and softwoods, and to an extraordinary data base of cancellous bone elastic constants. The solid volume fraction or bulk density is the compositional variable for the elastic constants of these natural materials. The final results are the solid volume fraction dependent orthotropic Hooke's law for cancellous bone and a bulk density dependent one for hardwoods and softwoods.

中文翻译：

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松质骨和木材的各向异性胡克定律。

将一组弹性常数测量值的数据分析方法应用于木材和松质骨的数据库。对于这些材料，弹性对称类型的识别由于材料的可变组成而变得复杂。数据分析方法允许独立于检查可变成分而完成对弹性对称类型的识别。这种分析方法可以应用于任何一组弹性常数测量，但此处通过应用于硬木和软木以及松质骨弹性常数的非凡数据库进行说明。固体体积分数或堆积密度是这些天然材料的弹性常数的组成变量。最终结果是取决于固体体积分数的正交各向异性胡克