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Journal article
Monotonic and fatigue behavior of five clinically relevant conventional and highly crosslinked UHMWPEs in the presence of stress concentrations
Journal of the mechanical behavior of biomedical materials, v 28, pp 244-253
01 Dec 2013
PMID: 24008137
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Five formulations of clinically relevant UHMWPE (conventional, moderately crosslinked annealed and remelted, and highly crosslinked annealed and remelted) were investigated in a physiologically relevant environment. Their monotonic stress-strain behavior in the presence of notches of two different severities and at two different displacement rates was examined using a custom developed video based system. It was found that both an elevation of yield stress and a truncation of orientation hardening took place under monotonic loading and that these changes were found to be material and elastic stress concentration factor dependent. The fatigue behavior of these materials was examined using the same geometries via a stress-life approach with failure defined as fracture of the specimen in the 1000 to 100,000 cycle lifetime range. The results were modeled using the Basquin relationship (sigma=AN(b), where sigma=stress and N=lifetime, and A and b are experimentally derived constants) via maximum likelihood estimation methods to account for specimen runout (no failure at 250,000cycles). The conventional material was found to have a greater slope, b, and intercept, A, than the crosslinked materials as well as appearing to have less variance in its failure distributions. (C) 2013 Published by Elsevier Ltd.
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Details
- Title
- Monotonic and fatigue behavior of five clinically relevant conventional and highly crosslinked UHMWPEs in the presence of stress concentrations
- Creators
- Michael C. Sobieraj - Case Western Reserve UniversityJames E. Murphy - Case Western Reserve UniversityJennifer G. Brinkman - Case Western Reserve UniversitySteve M. Kurtz - ExponentClare M. Rimnac - Case Western Reserve University
- Publication Details
- Journal of the mechanical behavior of biomedical materials, v 28, pp 244-253
- Publisher
- Elsevier
- Number of pages
- 10
- Grant note
- T32AR007505 / NATIONAL INSTITUTE OF ARTHRITIS AND MUSCULOSKELETAL AND SKIN DISEASES; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA; NIH National Institute of Arthritis & Musculoskeletal & Skin Diseases (NIAMS) T32 AR007505; AR07505; R01 AR047192; AR47192 / NIAMS NIH HHS; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA; NIH National Institute of Arthritis & Musculoskeletal & Skin Diseases (NIAMS) T32GM007250 / NATIONAL INSTITUTE OF GENERAL MEDICAL SCIENCES; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA; NIH National Institute of General Medical Sciences (NIGMS) T32GM07250; T32 GM007250 / NIGMS NIH HHS; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA; NIH National Institute of General Medical Sciences (NIGMS)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- School of Biomedical Engineering, Science, and Health Systems
- Web of Science ID
- WOS:000328234500022
- Scopus ID
- 2-s2.0-84883514066
- Other Identifier
- 991019176640504721
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- Collaboration types
- Industry collaboration
- Domestic collaboration
- Web of Science research areas
- Engineering, Biomedical
- Materials Science, Biomaterials