Viscoelastic Dissipation in Compact Bone : Implications for Stress-Induced Fluid Flow in Bone  

Oleh:

Lakes, Roderic ; Brand, Richard ; Garner, Elijah ; Lee, Taeyong ; Swan, Colby

Jenis: Article from Bulletin/Magazine
Dalam koleksi: Journal of Biomechanical Engineering vol. 122 no. 2 (2000), page 166-172.
Topik: FLUIDS; viscoelastic dissipation; compact bone; stress - induced; fluid flow

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: JJ52.1 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

Lihat Detail Induk

Isi artikel

Viscoelastic properties of wet and dry human compact bone were studied in torsion and in bending for both the longitudinal and transverse directions at frequencies from 5 mHz to 5 kHz in bending to more than 50 kHz in torsion. Two series of tests were done for different longitudinal and transverse specimens from a human tibia. Wet bone exhibited a larger viscoelastic damping tan d (phase between stress and strain sinusoids) than dry bone over a broad range of frequency. All the results had in common a relative minimum in tan d over a frequency range, 1 to 100 Hz, which is predominantly contained in normal activities. This behaviour is inconsistent with an optimal "design" for bone as a shock absorber. There was no definitive damping peak in the range of frequencies explored, which could be attributed to fluid flow in the porosity of bone.

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