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Effect of the stretch rate during uniaxial testing on the mechanical properties of prolene

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dc.contributor.author Ammouri, A.H.
dc.contributor.author Hamade, R.F.
dc.contributor.author Bazi, T.M.
dc.date.accessioned 2017-05-26T08:25:08Z
dc.date.available 2017-05-26T08:25:08Z
dc.identifier.isbn 978-0-7918-4518-9 en_US
dc.identifier.uri http://hdl.handle.net/10725/5669
dc.description.abstract We assess the effects of stretch rate on the mechanical properties of Prolene® (Ethicon, Gynecare, Somerville, NJ, USA), a knitted polypropylene mesh. Prolene®, consisting of macroporous knitted polypropylene, is considered here as a suitable proxy to midurethral tape (MUT) as well as to many other prosthesis products used in surgery applications. Such products are utilized to treat urine incontinence, pelvic organ prolapse, as well as hernia in humans. Of the mechanical properties of special significance are the following three properties: peak load (N), extension (%) at peak load, and linear stiffness (N/mm). Uniaxial tensile testing was performed on mesh samples on a universal testing machine and involved loading different samples at 5 cross-head speeds of: 1, 10, 50, 100, and 500 mm/min. The corresponding properties were measured under these 5 conditions. In order to minimize damage to the specimens at the jaws, special dual action pneumatically operated grips with rubber faced jaws were used to hold the samples in place. The effectiveness of these grips was illustrated by the fact that none of the failed samples broke at grips. Statistically significant findings suggest an increasing trend for Prolene® stiffness vs. stretch rate (R2 = 0.9679; two-tailed p value = 0.0025) where the stiffness increases 26.2% when increasing the displacement rate from 1 to 500 mm/min. For extension (%) at peak load, a decreasing trend was found vs. stretch rate (R2 = 0.81; two-tailed p value = 0.037) where increasing the displacement rate from 1 mm/min to 500 mm/min corresponds to a 22% decrease in the relative elongation of the mesh. No statistically significant dependence of peak load on stretch rate was found. These findings may help workers in the biomedical field develop suitable uniaxial tensile testing protocols of such materials. en_US
dc.language.iso en en_US
dc.publisher ASME en_US
dc.title Effect of the stretch rate during uniaxial testing on the mechanical properties of prolene en_US
dc.type Conference Paper / Proceeding en_US
dc.author.school SOE en_US
dc.author.idnumber 201306469 en_US
dc.author.department Industrial And Mechanical Engineering en_US
dc.description.embargo N/A en_US
dc.keywords Mechanical properties en_US
dc.keywords Testing en_US
dc.identifier.doi http://dx.doi.org/10.1115/IMECE2012-86022 en_US
dc.identifier.ctation Bazi, T. M., Ammouri, A. H., & Hamade, R. F. (2012, November). Effect of the Stretch Rate During Uniaxial Testing on the Mechanical Properties of Prolene®. In ASME 2012 International Mechanical Engineering Congress and Exposition (pp. 559-563). American Society of Mechanical Engineers. en_US
dc.author.email ali.ammouri@lau.edu.lb en_US
dc.conference.date November 9–15, 2012 en_US
dc.conference.pages 559-563
dc.conference.place Houston, Texas, USA en_US
dc.conference.title ASME 2012 International Mechanical Engineering Congress and Exposition en_US
dc.identifier.tou http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php en_US
dc.identifier.url http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=1750429 en_US
dc.volume 2: Biomedical and Biotechnology en_US
dc.author.affiliation Lebanese American University en_US


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