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Published in:
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2015 | OriginalPaper | Chapter

1. In Vitro Complex Shear Modulus of Bovine Muscle Tissue

Authors : Jennifer Hay, Sabina Cherneva

Published in: Mechanics of Biological Systems and Materials, Volume 7

Publisher: Springer International Publishing

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Abstract

In living tissue, there exists a reciprocal relationship between mechanical properties and function. That is, properties affect function, and function can affect properties by means of adaptation. Thus, knowledge of mechanical properties leads directly to knowledge of function. Dynamic instrumented indentation provides a way to measure the mechanical properties of soft biological tissue that is relevant, localized, and accurate.
In this work, we measured the complex shear modulus of bovine muscle tissue, submerged in saline at bovine body temperature (38 °C). The muscle tissue was significantly stiffer in the direction of the grain (G′ = 24.4 ± 13.9 kPa) than perpendicular to it (G′ = 11.4 ± 2.9 kPa). This was expected, because the muscle tissue naturally acts in the direction of the grain to alternately exert and relax force. The loss factor was highly consistent and independent of testing direction: tan δ = 0.34 ± 0.035. These results were consistent with what others have measured for muscle tissue using dynamic mechanical analysis (DMA).

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next chapter A Camera-Based Experimental Method for Mechanical Test on Patellar Tendons
Footnotes
1
The analogous problem for contact damping was also handled, but is not presented here for the sake of simplicity.
 
2
In order to allow the samples to be submerged during testing, we used washers to build a “well” on the sample base plate for the hot-stage. Two washers, built up from the base plate with JB Weld SteelStick, provided sufficient depth (8 mm).
 
3
The present testing was done at 10 Hz, but any frequency may be prescribed in the range of 1–200 Hz.
 
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Metadata
Title
In Vitro Complex Shear Modulus of Bovine Muscle Tissue
Authors
Jennifer Hay
Sabina Cherneva
Copyright Year
2015
Book
Mechanics of Biological Systems and Materials, Volume 7

Print ISBN: 978-3-319-06973-9

Electronic ISBN: 978-3-319-06974-6

Copyright Year: 2015

DOI
https://doi.org/10.1007/978-3-319-06974-6_1