THE MECHANICAL CHARACTERISTICS OF THE LONG BONES OF THE LOWER-EXTREMITY IN TORSIONAL LOADING
THE MECHANICAL CHARACTERISTICS OF THE LONG BONES OF THE LOWER-EXTREMITY IN TORSIONAL LOADING
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DOI：
10.1016/0021-9290(80)90353-x
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发表时间：
1980-01-01
影响因子：
2.4
通讯作者：
MULIER, JC
中科院分区：
文献类型：
--
作者：
MARTENS, M;VANAUDEKERCKE, R;MULIER, JC
人股骨和胫骨全骨样本在高应变率下承受扭转载荷。记录扭矩与角度偏转。计算断裂前的应变能和扭转刚度，并如下获得平均值：股骨的平均扭转刚度为562 nm/r [半径]，胫骨为101 nm;股骨的平均最大扭矩为183 nm，胫骨为101 nm;平均极限偏转为20 °。对于股骨样本和23 °。胫骨样本为7;股骨样本的平均能量吸收为35 J，胫骨样本为25 J。这些力学参数的变异性很高。显然，骨结构的几何形状的变化解释了骨结构的力学行为的变化。
Human femoral and tibial whole bone specimens were subjected to torsional loading at high strain rates. Torque vs. angular deflection was recorded. Strain energy before fracture and torsional stiffness were calculated, and mean values were obtained as follows: mean torsional stiffness for femoral bones, 562 nm/r [radius] and for tibial bones, 101 nm; mean maximum torque for femoral bones, 183 nm and for tibial bones, 101 nm; mean ultimate deflection, 20.degree. for femoral bone specimens and 23.degree. 7 for tibial bone specimens; mean energy absorption for femoral bone specimens, 35 J and for tibial bones, 25 J. A high variability of these mechanical parameters occurred. Apparently, the variation in geometry of the bone structures accounts for the variation of the mechanical behavior of bony structures.