The objective of this study is to propose a method for preliminary processing of the experimental data from an inflation-extension test on tubular arterial specimens. The method is based on the condition for existence of a strain energy function (SEF) and can be used to verify whether the data from a certain experiment validate the assumption that the tissue can be considered as an elastic solid. As an illustrative example of the proposed method, experimental data for a porcine renal artery are used and the sources of the error in satisfying the condition of elasticity are analyzed. The results lead to the conclusion that the experimental data for a renal artery validate that the artery exhibits an elastic mechanical response and a constitutive formulation based on the existence of the SEF is justified. A modification of the proposed method for the case of an in-plane biaxial stretching test of mechanically isotropic and orthotropic tissues is considered.
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August 2013
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A Preliminary Analysis of the Data From an in Vitro Inflation-Extension Test Can Validate the Assumption of Arterial Tissue Elasticity
Alexander Rachev,
Alexander Rachev
1
College of Engineering and Computing,
Biomedical Engineering Program,
e-mail: a.i.rachev@gmail.com
Biomedical Engineering Program,
University of South Carolina
,Columbia, SC 29208
e-mail: a.i.rachev@gmail.com
1Corresponding author.
Search for other works by this author on:
Tarek Shazly
Tarek Shazly
College of Engineering and Computing,
Biomedical Engineering Program,
College of Engineering and Computing,
Department of Mechanical Engineering,
Columbia, SC 29208
Biomedical Engineering Program,
University of South Carolina
,Columbia, SC 29208
;College of Engineering and Computing,
Department of Mechanical Engineering,
University of South Carolina
,Columbia, SC 29208
Search for other works by this author on:
Alexander Rachev
College of Engineering and Computing,
Biomedical Engineering Program,
e-mail: a.i.rachev@gmail.com
Biomedical Engineering Program,
University of South Carolina
,Columbia, SC 29208
e-mail: a.i.rachev@gmail.com
Tarek Shazly
College of Engineering and Computing,
Biomedical Engineering Program,
College of Engineering and Computing,
Department of Mechanical Engineering,
Columbia, SC 29208
Biomedical Engineering Program,
University of South Carolina
,Columbia, SC 29208
;College of Engineering and Computing,
Department of Mechanical Engineering,
University of South Carolina
,Columbia, SC 29208
1Corresponding author.
Contributed by the Bioengineering Division of ASME for publication in the JOURNAL OF BIOMECHANICAL ENGINEERING. Manuscript received October 23, 2012; final manuscript received May 21, 2013; accepted manuscript posted May 29, 2013; published online June 12, 2013. Assoc. Editor: Hai-Chao Han.
J Biomech Eng. Aug 2013, 135(8): 084502 (4 pages)
Published Online: June 12, 2013
Article history
Received:
October 23, 2012
Revision Received:
May 21, 2013
Accepted:
May 29, 2013
Citation
Rachev, A., and Shazly, T. (June 12, 2013). "A Preliminary Analysis of the Data From an in Vitro Inflation-Extension Test Can Validate the Assumption of Arterial Tissue Elasticity." ASME. J Biomech Eng. August 2013; 135(8): 084502. https://doi.org/10.1115/1.4024665
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