Effect of specimen thickness on fracture toughness of bovine patellar cartilage.
Effect of specimen thickness on fracture toughness of bovine patellar cartilage.
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试件厚度对牛髌骨软骨断裂韧性的影响
DOI：
10.1115/1.1635405
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
Lewis,JL
中科院分区：
文献类型：
--
作者：
Adams,DJ;Brosche,KM;Lewis,JL
采用两种厚度的改良单边缺口试件，测量了牛髌软骨的断裂韧性和裂纹尖端张开角。有薄（0.7 mm）与相对厚（2.7 mm）的标本之间的断裂韧性没有差异，但裂纹尖端张开角在裂纹扩展的开始是更大的薄标本（106度）比厚标本（70度）。牛髌软骨的断裂韧性1.03kJ/m2与先前报道的采用相同方法的犬髌软骨的断裂韧性1.07kJ/m2没有统计学差异。牛和犬软骨测量结果的巨大差异部分归因于个体动物之间的差异，并且与关节软骨其他机械性能测量结果的差异一致。观察到的裂纹尖端张开角随着试样厚度的增加而减小，这与某些工程材料的行为一致，并表明试样厚度影响牛髌骨软骨的断裂行为。
Fracture toughness and crack tip opening angle were measured for bovine patellar cartilage using modified single-edged notch specimens of two thicknesses. There was no difference in fracture toughness between thin (0.7 mm) versus relatively thick (2.7 mm) specimens, but the crack tip opening angle at initiation of crack propagation was larger for the thin specimens (106 deg) than for the thick specimens (70 deg). Fracture toughness of the bovine patellar cartilage 1.03kJ/m2 was not statistically different than that reported previously for canine patellar cartilage 1.07kJ/m2 employing the same methods. Large variation in measurements for both bovine and canine cartilage are in part attributable to variation between individual animals, and are consistent with variation in other mechanical property measurements for articular cartilage. The observed reduction in crack tip opening angle with increased specimen thickness is consistent with behavior of some engineering materials, and demonstrates that specimen thickness influences fracture behavior for bovine patellar cartilage.
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DOI：
10.1115/1.2796042
发表时间：
1996-11-01
影响因子：
1.7
作者：
ChinPurcell, MV;Lewis, JL
通讯作者：
Lewis, JL
骨关节炎股骨头和尸检标本中人类关节软骨的机械和生化特性。
DOI：
10.1302/0301-620x.68b2.3958016
发表时间：
1986
期刊：
The Journal of bone and joint surgery. British volume
影响因子：
--
作者：
S. Roberts;B. Weightman;J. Urban;D. Chappell
通讯作者：
D. Chappell
DOI：
10.1115/1.1449905
发表时间：
2002-04-01
影响因子：
1.7
作者：
Elliott, DM;Narmoneva, DA;Setton, LA
通讯作者：
Setton, LA
DOI：
10.1115/1.2895525
发表时间：
1993-11-01
影响因子：
1.7
作者：
MOW, VC;ATESHIAN, GA;SPILKER, RL
通讯作者：
SPILKER, RL