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Compressive and Shear Properties of Commercially Available Polyurethane Foams
Department of Orthopaedics, Lund University Hospital, Lund 22185, Sweden.
Department of Orthopaedics, Lund University Hospital, Lund 22185, Sweden.
Department of Orthopaedics, Lund University Hospital, Lund 22185, Sweden.
Linköping University, Faculty of Health Sciences. Linköping University, Department of Clinical and Experimental Medicine, Orthopaedics and Sports Medicine .
2003 (English)In: Journal of Biomechanical Engineering, ISSN 0148-0731, E-ISSN 1528-8951, Vol. 125, no 5, 732-734 p.Article in journal (Refereed) Published
Abstract [en]

Background: The shear properties of rigid polyurethane (PU-R) foams, routinely used to simulate cancellous bone, are not well characterized. Method of approach: The present assessment of the shear and compressive properties of four grades of Sawbones "Rigid cellular" PU-R foam tested 20 mm gauge diameter dumb-bell specimens in torsion and under axial loading. Results: Shear moduli ranged from 13.3 to 99.7 MPa, shear strengths from 0.7 MPa to 4.2 MPa. Compressive yield strains varied little with density while shear yield strains had peak values with "200 kgm-3" grade. Conclusions: PU-R foams may be used to simulate the elastic but not failure properties of cancellous bone.

Place, publisher, year, edition, pages
2003. Vol. 125, no 5, 732-734 p.
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-46476DOI: 10.1115/1.1614820OAI: oai:DiVA.org:liu-46476DiVA: diva2:267372
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2017-12-13

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Ryd, Leif

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