Mechanical impact behavior of polyether–ether–ketone (PEEK)

This paper deals with the mechanical behavior of polyether–ether–ketone (PEEK) under impact loading. PEEK polymers are the great interested in the field of medical implants due to their biocompatibility, weight reduction, radiology advantage and 3D printing properties. Implant applications can invol...

Full description

Saved in:
Bibliographic Details
Published in:Composite structures 2015-06, Vol.124, p.88-99
Main Authors: Garcia-Gonzalez, D., Rusinek, A., Jankowiak, T., Arias, A.
Format: Article
Language:English
Subjects:
Accidental impacts
Biomaterials
Failure mode
Impact
Impact loading
Kinetic energy
Mathematical models
Medical
Perforation
Polyetheretherketones
Polyether–ether–ketone
Surgical implants
Titanium base alloys
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper deals with the mechanical behavior of polyether–ether–ketone (PEEK) under impact loading. PEEK polymers are the great interested in the field of medical implants due to their biocompatibility, weight reduction, radiology advantage and 3D printing properties. Implant applications can involve impact loading during useful life and medical installation, such as hip systems, bone anchors and cranial prostheses. In this work, the mechanical impact behavior of PEEK is compared with Ti6Al4V titanium alloy commonly used for medical applications. In order to calculate the kinetic energy absorption in the impact process, perforation tests have been conducted on plates of both materials using steel spheres of 1.3g mass as rigid penetrators. The perforation test covered impact kinetic energies from 21J to 131J, the equivalent range observed in a fall, an accidental impact or a bike accident. At all impact energies, the ductile process of PEEK plates was noted and no evidence of brittle failure was observed. Numerical modeling that includes rate dependent material is presented and validated with experimental data.
ISSN:0263-8223
1879-1085
DOI:10.1016/j.compstruct.2014.12.061