Tension and fatigue behavior of 316LVM 1 x 7 multi-strand cables used as implantable electrodes

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING

卷:486

Article

Lewandowski, John J.¹  Varadarajana, Ravikurnar¹  Smith, Brian²  Tuma, Chris¹  Shazly, Mostafa¹  Vatamanu, Luciano O.¹ 

[1] Case Western Reserve Univ, Dept Mat Sci & Engn, Cleveland, OH 44106 USA

[2] Case Western Reserve Univ, Dept Biomed Engn, Cleveland, OH 44106 USA

关键词: stainless steel cables;    fatigue-life;    Coffin-Manson-Basquin;    S-N;    implantable electrodes;   

DOI  :  10.1016/j.msea.2007.11.016

来源: Elsevier

【 摘 要 】

The mechanical behavior of 316LVM 1 x 7 cables were evaluated in uniaxial tension and in cyclic strain-controlled fatigue with the use of a Flex tester operated to provide fully reversed bending fatigue. The magnitude of cyclic strains imparted to each cable tested was controlled via the use of different diameter mandrels. Smaller diameter mandrels produced higher values of cyclic strain and lower fatigue life. Multiple samples were tested and analyzed via scanning electron microscopy. The fatigue results were analyzed via a Coffin-Manson-Basquin approach and compared to fatigue data obtained from the literature where testing was conducted on similar materials, but under rotating bending fatigue conditions. (C) 2007 Elsevier B.V. All rights reserved.

【 授权许可】

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