Mechanical properties of soft human tissues under dynamic loading

被引：135

作者：

Saraf, H.

Ramesh, K. T. ^{[1
]}

Lennon, A. M.

Merkle, A. C.

Roberts, J. C.

机构：

[1] Johns Hopkins Univ, Dept Engn Mech, Baltimore, MD 21218 USA

[2] Johns Hopkins Univ, Appl Phys Lab, Laurel, MD 20723 USA

来源：

JOURNAL OF BIOMECHANICS | 2007年 / 40卷 / 09期

关键词：

mechanical properties; soft tissues; bulk modulus; shear response; Kolsky bar; high strain rate;

D O I：

10.1016/j.jbiomech.2006.09.021

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 ;

摘要：

The dynamic response of soft human tissues in hydrostatic compression and simple shear is studied using the Kolsky bar technique. We have made modifications to the technique that allow loading of a soft tissue specimen in hydrostatic compression or simple shear. The dynamic response of human tissues (from stomach, heart, liver, and lung of cadavers) is obtained, and analyzed to provide measures of dynamic bulk modulus and shear response for each tissue type. The dynamic bulk response of these tissues is easily described by a linear fit for the bulk modulus in this pressure range, whereas the dynamic shearing response of these tissues is strongly non-linear, showing a near exponential growth of the shear stress. (C) 2006 Elsevier Ltd. All rights reserved.

引用

页码：1960 / 1967

页数：8

共 23 条

[1]

[Anonymous], 1970, STRENGTH BIOL MAT

[2] A high-frequency shear device for testing soft biological tissues [J].