A Triaxial-Measurement Shear-Test Device for Soft Biological Tissues-Reference-Cited by-同舟云学术

A Triaxial-Measurement Shear-Test Device for Soft Biological Tissues

Published:2000-03-28 Issue:5 Volume:122 Page:471-478
ISSN:0148-0731
Container-title:Journal of Biomechanical Engineering
language:en
Short-container-title:

Author:

Dokos Socrates¹,LeGrice Ian J.¹,Smaill Bruce H.¹,Kar Julia²,Young Alistair A.¹

Affiliation:

1. Department of Physiology, School of Medicine, University of Auckland, Private Bag 92019, Auckland, New Zealand

2. Department of Engineering Science, School of Engineering, University of Auckland, Auckland, New Zealand

Abstract

A novel shear-test device for soft biological tissue, capable of applying simple shear deformations simultaneously in two orthogonal directions while measuring the resulting forces generated in three axes, is described. We validated the device using a synthetic gel, the properties of which were ascertained from independent tensile and rotational shear tests. Material parameters for the gel were fitted using neo-Hookean analytical solutions to the independent test data, and these matched the results from the device. Preliminary results obtained with rat septal myocardium are also presented to demonstrate the feasibility of the apparatus in determining the shear characteristics of living tissue. [S0148-0731(00)00205-3]

Publisher

ASME International

Subject

Physiology (medical),Biomedical Engineering

Link

http://asmedigitalcollection.asme.org/biomechanical/article-pdf/122/5/471/5696924/471_1.pdf

Reference19 articles.

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3. Humphrey, J. D., and Yin, F. C. P., 1988, “Biaxial Mechanical Behavior of Excised Epicardium,” ASME J. Biomech. Eng., 110, pp. 349–351.

4. Smaill, B., and Hunter, P., 1991, “Structure and Function of the Diastolic Heart: Material Properties of Passive Myocardium,” in: Theory of Heart, 1st ed., Glass, L., Hunter, P., and McCulloch, A., eds., Springer-Verlag, New York, pp. 1–29.

5. LeGrice, I. J., Takayama, Y., and Covell, J. W., 1995, “Transverse Shear Along Myocardial Cleavage Planes Provides a Mechanism for Normal Systolic Wall Thickening,” Circ. Res., 77, pp. 182–193.

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