Development of a porous metallic femoral stem: Design, manufacturing, simulation and mechanical testing

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• 作者：Charles Simoneau ^{charles.simoneau.1@ens.etsmtl.ca} ; Patrick Terriault ; ^{patrick.terriault@etsmtl.ca} ; Bruno Jett&eacute ; ^{bruno.jette.1@ens.etsmtl.ca} ; Mathieu Dumas ^{mathieu.dumas.1@etsmtl.net} ; Vladimir Brailovski ^{vladimir.brailovski@etsmtl.ca}
• 关键词：Biomimetic femoral stem ; Metallic foams ; Selective laser melting ; Finite element analysis ; Digital image correlation ; ISO 7206-4 (2010)
• 刊名：Materials & Design
• 出版年：2017
• 出版时间：15 January 2017
• 年：2017
• 卷：114
• 期：Complete
• 页码：546-556
• 全文大小：1923 K
• 卷排序：114

文摘

Biomimetic femoral stem with embedded stochastic open-cell porous structure is designed using a proprietary algorithm. Selective laser melting and Ti-6Al-4V powder are used to additively manufacture the porous stem and a fully dense replica. Finite element analysis and digital image correlation are employed to evaluate the flexural response of the stems. Flexural stiffness reductions of 31% (numerical estimation) and 47% (experiments) are achieved due to added porosity.