Experimental study of damage and fracture of cancellous bone using a digital speckle correlation method.
Experimental study of damage and fracture of cancellous bone using a digital speckle correlation method.
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DOI：
10.1117/1.2928126
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发表时间：
2008-05
影响因子：
3.5
通讯作者：
X. Yao;Peng Wang;R. Dai
中科院分区：
文献类型：
--
作者：
X. Yao;Peng Wang;R. Dai
松质骨是生物体内广泛存在的结构，例如，在股骨头和脊柱中。研究了牛松质骨在三点弯曲载荷作用下的损伤演化和裂纹扩展。利用数字散斑相关法（DSCM）记录了一系列包含裂纹尖端周围变形信息的散斑图像，得到了不同加载水平下裂纹尖端的全场位移分布。分析了松质骨损伤、变形和骨折的特点。这些结果为研究松质骨的断裂行为提供了一些有用的信息。
Cancellous bone is a widespread structure in a creatural body, for instance, in the femoral head and spondyle. The damage evolution and crack growth of cattle cancellous bone were studied under three-point-bending load conditions. A series of speckle images with deformation information surrounding the crack tip were recorded, and the full-field displacement distributions were obtained at different loading levels by means of digital speckle correlation method (DSCM). Characterizations of the damage deformation and fracture of cancellous bone were analyzed. These results provide some useful information for studying the fracture behavior of cancellous bone.