Evaluation of dynamic compressive properties of PLA polymer blends using split Hopkinson pressure bar
2009 (English)In: DYMAT 2009, 9th International conferense on the mechanical and physical behaviour of materials under dynamic loading: Experimental techniques, Industrial applications, Bio-Mechanics, Les Ulis: EDP Sciences, 2009, Vol. 1, 909-915 p.Conference paper (Refereed)
Poly(lactic acid) (PLA) has been used as a biomaterial for bone fixation devices in oral and orthopedic surgery because of good biocompatibility and bioabsorbability. Because Poly(e-Caprolactone) (PCL) is a ductile, bioabsorbable and biodegradable polymer, many types of PLA/ PCL polymer blends have been developed to improve its material strength and impact resistance. The stress-strain curves of PLA and PLA/PCL polymer blends were measured using a split Hopkinson pressure bar (Kolsky bar) method and a universal testing machine. The effect of PCL content on Young's modulus and yield stress was examined. The values of constants in Cowper-Symonds equation with respect to yield stress were determined for PLA and PLA/PCL polymer blend specimens. PLA/PCL specimens were observed using a scanning electron microscope.
Place, publisher, year, edition, pages
Les Ulis: EDP Sciences, 2009. Vol. 1, 909-915 p.
Research subject Solid Mechanics
IdentifiersURN: urn:nbn:se:ltu:diva-35192DOI: 10.1051/dymat/2009127Local ID: 99e77bb0-9f78-11de-8293-000ea68e967bISBN: 978-2-7598-0472-6OAI: oai:DiVA.org:ltu-35192DiVA: diva2:1008444
International Conference on the Mechanical and Physical Behaviour of Materials Under Dynamic Loading : 07/09/2009 - 11/09/2009
Godkänd; 2009; 20090912 (parj)2016-09-302016-09-30Bibliographically approved