Material properties of the heel fat pad across strain rates.
Material properties of the heel fat pad across strain rates.
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DOI：
10.1016/j.jmbbm.2016.09.003
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发表时间：
2017-01
影响因子：
3.9
通讯作者：
Masouros SD
中科院分区：
文献类型：
--
作者：
Grigoriadis G;Newell N;Carpanen D;Christou A;Bull AMJ;Masouros SD
人类足跟脂肪垫的复杂结构和材料行为决定了足底负荷在各种负荷情况下（从运动到伤害事件）向下肢的传递。本研究的目的是量化的超粘弹性材料特性的人脚跟脂肪垫跨应变和应变率。逆有限元（FE）优化算法的开发和使用，结合准静态和动态测试进行了5个尸体脚跟标本，推导出的具体和平均超粘弹性材料模型，能够准确预测的应变率高达150 s-1的压缩载荷下的组织的响应。平均行为由准线性粘弹性（QLV）材料公式表示，结合Yeoh材料模型（，，）和Prony的项（，，for，，）。这些新数据有助于更好地了解足部和踝关节的功能解剖学和病理生理学，开发用于组织重建，鞋，鞋垫和足部和踝关节矫形器设计的仿生材料，并提高足部和踝关节计算模型的预测能力，用于模拟日常活动或预测高伤害率的伤害事件，如道路交通事故和车底爆炸。
The complex structural and material behaviour of the human heel fat pad determines the transmission of plantar loading to the lower limb across a wide range of loading scenarios; from locomotion to injurious incidents. The aim of this study was to quantify the hyper-viscoelastic material properties of the human heel fat pad across strains and strain rates. An inverse finite element (FE) optimisation algorithm was developed and used, in conjunction with quasi-static and dynamic tests performed to five cadaveric heel specimens, to derive specimen-specific and mean hyper-viscoelastic material models able to predict accurately the response of the tissue at compressive loading of strain rates up to 150 s−1. The mean behaviour was expressed by the quasi-linear viscoelastic (QLV) material formulation, combining the Yeoh material model (, , ) and Prony׳s terms (, , for , , ). These new data help to understand better the functional anatomy and pathophysiology of the foot and ankle, develop biomimetic materials for tissue reconstruction, design of shoe, insole, and foot and ankle orthoses, and improve the predictive ability of computational models of the foot and ankle used to simulate daily activities or predict injuries at high rate injurious incidents such as road traffic accidents and underbody blast.
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DOI：
10.1016/j.jmbbm.2011.08.025
发表时间：
2012-01-01
影响因子：
3.9
作者：
Natali, A. N.;Fontanella, C. G.;Carniel, E. L.
通讯作者：
Carniel, E. L.
DOI：
10.1007/bf00334416
发表时间：
1996-06-01
期刊：
EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY AND OCCUPATIONAL PHYSIOLOGY
影响因子：
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作者：
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通讯作者：
Ogawa, T
DOI：
10.1177/107110079201300502
发表时间：
1992-06-01
期刊：
FOOT & ANKLE
影响因子：
--
作者：
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通讯作者：
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影响因子：
2.3
作者：
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通讯作者：
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影响因子：
2.7
作者：
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通讯作者：
RICCI, JL