2007年
The effects of strain rate and low-gamma irradiation on the compressive properties of UHMWPE.
Bio-medical materials and engineering
- ,
- ,
- ,
- 巻
- 17
- 号
- 2
- 開始ページ
- 87
- 終了ページ
- 95
- 記述言語
- 英語
- 掲載種別
- 出版者・発行元
- IOS Press
The effects of strain rate and low-gamma irradiation on the compressive properties of ultra-high molecular-weight polyethylene (UHMWPE) were investigated. Gamma irradiation was performed at 30 kGy in nitrogen or at 29 kGy in air without post-irradiation treatment. Quasi-static and impact compressive tests using the split-Hopkinson pressure-bar technique were performed to measure stress-strain relations up to a true strain of 8% at strain rates of between 0.0004 and 260 s(-1). For both unirradiated and gamma-irradiated UHMWPE specimens, an increase in the strain rate significantly increased the Young's modulus and the 0.5% yield stress. Gamma irradiation in air significantly increased the Young's modulus, as determined by quasi-static and impact compressive testing, and the 0.5% yield stress, as determined by impact compressive testing. The strain-rate dependence in the power-law relationship was similar to that observed for strain rates ranging from 0.02 to 0.10 s(-1) (Kurtz et al., Biomaterials 23, 2002, pp. 3681-3697).
- リンク情報
-
- CiNii Articles
- http://ci.nii.ac.jp/naid/120005394695
- CiNii Books
- http://ci.nii.ac.jp/ncid/AA1076721X
- PubMed
- https://www.ncbi.nlm.nih.gov/pubmed/17377217
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000244894100003&DestApp=WOS_CPL
- URL
- http://hdl.handle.net/10191/26386
- ID情報
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- ISSN : 0959-2989
- CiNii Articles ID : 120005394695
- CiNii Books ID : AA1076721X
- PubMed ID : 17377217
- Web of Science ID : WOS:000244894100003