Biomechanical Analysis of CNS Gray Matter in Tension and Compression

Mehdizadehi, Sina; Najarianii, Siamak; Farmanzadiii, Farhad; Khoshgoftariv, Mehdi

doi:10.22060/eej.2010.105

دانشگاه صنعتی امیرکبیر

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Biomechanical Analysis of CNS Gray Matter in Tension and Compression

AUT Journal of Electrical Engineering

مقاله 6، دوره 42، شماره 1، تابستان 2010، صفحه 45-50 اصل مقاله (301 K)

نوع مقاله: Research Paper

شناسه دیجیتال (DOI): 10.22060/eej.2010.105

نویسندگان

Sina Mehdizadehi¹؛ Siamak Najarianii^* ²؛ Farhad Farmanzadiii³؛ Mehdi Khoshgoftariv⁴

¹S. Mehdizadeh is with the Faculty of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran (e-mail: s.mehdizadeh@aut.ac.ir).

²Corresponding Author, S. Najarian is with the Faculty of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran (e-mail: najarian@aut.ac.ir).

³F. Farmanzad is with the Department of Mechanical Engineering, Iran University of Science and Technology, Tehran, Iran (e-mail: f.farmanzad@sazeh.co.ir).

⁴M. Khoshgoftar is with the Faculty of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran (e-mail: p.khoshgoftar.eng@gmail.com).

چکیده

The purpose of this study is to survey cross section changes of the animal brain samples during the tension and compression tests and comparison of the experimental results for three animals: bovine, sheep, and rabbit. A linear elastic theory with considering the necking in tension and barreling in compression has been considered for brain tissue. Bridgman method for tension and cross section updating method (using a picture analyzing through a computer program to trace cross section changes during the test) for compression has been applied in order to consider necking and barreling. It is shown that the effect of cross section changes of the samples during the test is not negligible. Differences in the behavior of brain tissue of bovine, sheep, and rabbit in both compression and tension are discussed. Results are in good agreement with previous works in the literature.

کلیدواژه ها

Biomechanics؛ Brain Tissue؛ Mechanical Behavior؛ Tension؛ Compression

عنوان مقاله [English]

Biomechanical Analysis of CNS Gray Matter in Tension and Compression

نویسندگان [English]

مراجع

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