@article{oai:niigata-u.repo.nii.ac.jp:00003686, author = {小林, 公一 and 田辺, 裕治 and 原, 利昭}, issue = {616}, journal = {日本機械学会論文集. A編, 日本機械学会論文集. A編}, month = {Dec}, note = {Dynamic compressive behaviour of bovine trabecular bone was investigated. Compression tests on cylindrical specimens of bovine distal femurs were carried out using the split-Hopkinson pressurebar (SHPB) technique at strain rates ranging from 100 to 700 s^<-1>. Quasi-static compression tests were also performed using an Instron-type materials testing machine at strain rates of 2×10^<-4> and 2×10^<-3> s^<-1>. Stiffness and ultimate strength were greater at greater apparent density and at higher strain rate. Both stress relaxation and creep functions were determined based on stress-time and strain-time relations obtained by the SHPB tests. Relaxation time and retardation time had no correlation with apparent density. The three-element standard linear solid model was then validated by these functions. The elastic spring stiffness of the model, E_1,had a strong positive correlation with apparent density, while the elastic spring stiffness, E_2,and the viscosity coefficient, η, showed less correlation with apparent density. No significant differences in the relaxation and retardation times, the elastic spring stiffnesses, E_1,E_2,and the viscosity coefficient, η, were observed between the specimens with and without marrow.}, pages = {2624--2630}, title = {衝撃圧縮荷重下におけるウシ海綿骨の力学的挙動 (小特集:材料・構造の衝撃問題)}, volume = {63}, year = {1997} }