TENSILE IMPACT PROPERTIES OF HUMAN COMPACT BONE
TENSILE IMPACT PROPERTIES OF HUMAN COMPACT BONE
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DOI：
10.1016/0021-9290(76)90010-5
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发表时间：
1976-01-01
影响因子：
2.4
通讯作者：
HAYES, WC
中科院分区：
文献类型：
--
作者：
SAHA, S;HAYES, WC
在摆锤式仪器化拉伸冲击试验机中以133 s-1的应变速率对来自人密质骨的纵向试样进行测试。记录的载荷时间历程显示出显着的非线性的应力-应变行为的一些标本，包括塑性变形和应变硬化效应，强调断裂能单独是一个不完整的代表性的拉伸冲击行为的骨。平均拉伸冲击强度和冲击能量容量为126.3 ± 0.01。33.1 MN/m2和18790 . ±. 7355 J/m2，49例新鲜人体标本。13个新鲜人体样本的准静态拉伸强度比拉伸冲击强度低34%。统计学上显着的相关性之间的弹性性能，极限应力和冲击能量容量。拉伸冲击强度也与样本中次级骨单位的面积百分比呈负相关。
Longitudinal specimens from human compact bone were tested in a pendulum type instrumented tensile impact tester at a strain rate of 133 s-1. The recorded load time histories showed marked nonlinearities in the stress strain behavior of some specimens including plastic deformation and strain hardening effects, emphasizing that the fracture energy alone is an incomplete representation of the tensile impact behavior of bone. Mean tensile impact strengths and impact energy capacities were 126.3 .+-. 33.1 MN/m2 and 18790 .+-. 7355 J/m2 for 49 fresh human specimens. Quasi-static tensile strengths for 13 fresh human samples were 34% less than the tensile impact strength. Statistically significant correlations were found between elastic properties, ultimate stress and impact energy capacity. Tensile impact strength also correlated negatively with the percentage area of secondary osteons in the specimen.