Compressive and shear properties of commercially available polyurethane foams.

Journal article

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 w...

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Authors: Thompson, M; McCarthy, I; Lidgren, L; Ryd, L

• Publication status: Published
• Journal: Journal of biomechanical engineering
• Volume: 125
• Issue: 5
• Pages: 732-734
• Publication date: 2003-10-01
• DOI: 10.1115/1.1614820
• EISSN: 1528-8951
• ISSN: 0148-0731
• Language: English
• Keywords: Weight-Bearing; Bone Substitutes; Compressive Strength; Biocompatible Materials; Polyurethanes; Shear Strength; Materials Testing; Torque; Elasticity