Linear and quasi-linear viscoelastic characterization of ankle ligaments

被引：191
|
作者：
Funk, JR [1 ]
Hall, GW [1 ]
Crandall, JR [1 ]
Pilkey, WD [1 ]
机构：
[1] Univ Virginia, Dept Mech Aerosp & Nucl Engn, Automobile Safety Lab, Charlottesville, VA 22903 USA
来源：
JOURNAL OF BIOMECHANICAL ENGINEERING-TRANSACTIONS OF THE ASME | 2000年 / 122卷 / 01期
关键词：
D O I：
10.1115/1.429623
中图分类号：
Q6 [生物物理学];
学科分类号：
071011 ;
摘要：
The objective of this study was to produce linear and nonlinear viscoelastic models of eight majorj ligaments in the human ankle/foot complex for use in computer models of the lower extremity. The ligaments included in this study were the anterior talofibular (ATaF), anterior tibiofibular (ATiF), anterior tibiotalar (ATT), calcaneofibular (CF), posterior talofibular (PTaF), posterior tibiofibular (PTiF), posterior tibiotalar (PTT), and tibiocalcaneal (TiC) ligaments. Step relaxation and ramp tests were performed. Back-extrapolation was used to correct for vibration effects and the error introduced by the finite rise time in step relaxation tests. Ligament behavior was found to be nonlinear viscoelastic, but could be adequately modeled up to 15 percent strain using Fung's quasilinear viscoelastic (QLV) model. Failure properties and the effects of preconditioning were also examined. [S0148-0731(00)01001-3].
引用
收藏
页码：15 / 22
页数：8
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