Files and links (1)
Accepted (AM)Open Access (License Unspecified), Open
Journal article
Notch sensitivity of PEEK in monotonic tension
Biomaterials, v 30(33), pp 6485-6494
2009
PMID: 19733391
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Poly(ether-ether-ketone) (PEEK) has been used as a load bearing orthopaedic implant material with clinical success. All of the orthopaedic applications contain stress concentrations (notches) in their design; however, little work has been done to examine the stress–strain behavior of PEEK in the presence of a notch. This work examines both the stress–strain behavior and the fracture behavior of neat PEEK in a uniaxial loaded condition, and in circumferentially grooved round bar specimens with different elastic stress concentration factors. It was found that the material shows ductile necking in the smooth condition and that this is almost completely suppressed in the notched conditions. Additionally, the deformation and fracture micromechanisms changed drastically, from one of plastic deformation and void coalescence to one dominated by crazing and brittle fast fracture. This change in mechanism was explained via Neuber's theory of stresses at a notch.
Metrics
Details
- Title
- Notch sensitivity of PEEK in monotonic tension
- Creators
- Michael C. Sobieraj - Case Western Reserve UniversitySteven M. Kurtz - Exponent (United States)Clare M. Rimnac - Case Western Reserve University
- Publication Details
- Biomaterials, v 30(33), pp 6485-6494
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- School of Biomedical Engineering, Science, and Health Systems
- Web of Science ID
- WOS:000271148900002
- Scopus ID
- 2-s2.0-70349299782
- Other Identifier
- 991019167649604721
UN Sustainable Development Goals (SDGs)
This publication has contributed to the advancement of the following goals:
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Industry collaboration
- Domestic collaboration
- Web of Science research areas
- Engineering, Biomedical
- Materials Science, Biomaterials