Mechanical impact behavior of polyether-ether-ketone (PEEK)
Mechanical impact behavior of polyether-ether-ketone (PEEK)
复制标题
DOI：
10.1016/j.compstruct.2014.12.061
复制
发表时间：
2015-06-01
影响因子：
6.3
通讯作者：
Arias, A.
中科院分区：
文献类型：
--
作者：
Garcia-Gonzalez, D.;Rusinek, A.;Arias, A.
本文研究了聚醚醚酮（PEEK）在冲击载荷下的力学行为。PEEK聚合物由于其生物相容性、重量减轻、放射学优势和3D打印特性而在医疗植入物领域引起了极大的兴趣。植入物应用可能涉及使用寿命和医疗安装期间的冲击载荷，例如髋关节系统、骨锚和颅骨假体。在这项工作中，PEEK的机械冲击行为与Ti6AI4V钛合金通常用于医疗应用进行了比较。为了计算在冲击过程中的动能吸收，穿孔试验已经进行了两种材料的板上使用1.3克质量的钢球作为刚性穿透器。穿孔测试涵盖了从21 J到131 J的冲击动能，这是在跌倒、意外撞击或自行车事故中观察到的等效范围。在所有冲击能量下，观察到PEEK接骨板的韧性过程，未观察到脆性失效的证据。数值模拟，包括率相关的材料，并与实验数据进行验证。(C)2015爱思唯尔有限公司版权所有。
This paper deals with the mechanical behavior of polyether ether ketone (PEEK) under impact loading. PEEK polymers are the great interested in the field of medical implants due to their biocompatibility, weight reduction, radiology advantage and 3D printing properties. Implant applications can involve impact loading during useful life and medical installation, such as hip systems, bone anchors and cranial prostheses. In this work, the mechanical impact behavior of PEEK is compared with Ti6AI4V titanium alloy commonly used for medical applications. In order to calculate the kinetic energy absorption in the impact process, perforation tests have been conducted on plates of both materials using steel spheres of 1.3 g mass as rigid penetrators. The perforation test covered impact kinetic energies from 21 J to 131 J, the equivalent range observed in a fall, an accidental impact or a bike accident. At all impact energies, the ductile process of PEEK plates was noted and no evidence of brittle failure was observed. Numerical modeling that includes rate dependent material is presented and validated with experimental data. (C) 2015 Elsevier Ltd. All rights reserved.