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首页> 外文期刊>Journal of the mechanical behavior of biomedical materials >Experimental multiscale measurements for the mechanical identification of a cortical bone by digital image correlation
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Experimental multiscale measurements for the mechanical identification of a cortical bone by digital image correlation

机译：通过数字图像相关性对皮质骨进行机械鉴定的实验多尺度测量

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摘要

The implementation of the experimental methodology by optical measurements of mechanical fields, the development of a test bench, the specimen preparation, the experimental measurements, and the digital image correlation (DIC) method, have already been the object of research in the context of biological materials. Nevertheless, in the framework of the experimental identification of a mesoscopic stochastic model of the random apparent elasticity field, measurements of one specimen is required at both the macroscopic scale and the mesoscopic scale under one single loading. The nature of the cortical bone induces some difficulties, as no single speckled pattern technique is available for simultaneously obtaining the displacement at the macroscopic scale and at the mesoscopic scale. In this paper, we present a multiscale experimental methodology based on (i) an experimental protocol for one specimen of a cortical bone, (ii) its measuring bench, (iii) optical field measurements by DIC method, (iv) the experimental results, and (v) the multiscale experimental identification by solving a statistical inverse problem. (C) 2016 Elsevier Ltd. All rights reserved.
机译：通过光学测量机械场来实现实验方法，开发试验台，样品制备，实验测量以及数字图像相关（DIC）方法，已经成为生物学领域的研究对象。材料。然而，在实验上确定随机表观弹性场的介观随机模型的框架下，需要在一个单一载荷下在宏观尺度和介观尺度上测量一个样本。皮质骨的性质引起了一些困难，因为没有单一的斑点图案技术可用于同时获得宏观尺度和介观尺度的位移。在本文中，我们提出了一种多尺度的实验方法，该方法基于（i）一个皮质骨标本的实验方案，（ii）其测量平台，（iii）通过DIC方法进行的光场测量，（iv）实验结果， （v）通过解决统计逆问题进行多尺度实验识别。 （C）2016 Elsevier Ltd.保留所有权利。

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