Evaluation of Mechanical Behaviour of Bone Cements by Using Acoustic Emission Technique
Evaluation of Mechanical Behaviour of Bone Cements by Using Acoustic Emission Technique
复制标题
声发射技术评价骨水泥的力学行为
DOI：
10.4028/www.scientific.net/amr.856.246
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
A. May
中科院分区：
文献类型：
--
作者：
C. R. Ríos;S. Wakayama;T. Sakai;J. Cervantes;A. May
生物材料如丙烯酸骨水泥广泛应用于骨科手术中，用于人工关节的固定。因此，这些材料在外部应力下的机械行为是特别感兴趣的，以实现长期的体内性能。断裂过程可以归结为多种随机的微观损伤模式。随着载荷的增加，新的损伤模式出现，现有的损伤模式可以根据材料的性质过渡到其他损伤模式。然而，在详细了解微观管理的启动和发展，并因此，在优化生物材料的性能存在局限性。本文主要研究骨水泥中声信号的发射，以监测被认为是体内失效的主要原因的内部缺陷的演变。
Biomaterials such as acrylic bone cements are widely applied in orthopaedic surgery for the fixation of artificial joints. Therefore, the mechanical behavior of such materials under external stresses is of special interest in order to achieve long-term in vivo performance. Fracture process can be attributed to diverse random microscopic damage modes. As the load increases, new damage modes appear and the existing ones can transition into others depending on the nature of the material. However, limitation exists in detailing the understanding of the micromanage initiation and development, and, consequently, in optimizing biomaterials performance. This paper focuses in the study of the emission of acoustic signals from bone cements in order to monitor the evolution of the internal defects that are believed to dominate in vivo failure.