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Mehdizadehi, S., Najarianii, S., Farmanzadiii, F., Khoshgoftariv, M. (2010). Biomechanical Analysis of CNS Gray Matter in Tension and Compression. AUT Journal of Electrical Engineering, 42(1), 45-50. doi: 10.22060/eej.2010.105
Sina Mehdizadehi; Siamak Najarianii; Farhad Farmanzadiii; Mehdi Khoshgoftariv. "Biomechanical Analysis of CNS Gray Matter in Tension and Compression". AUT Journal of Electrical Engineering, 42, 1, 2010, 45-50. doi: 10.22060/eej.2010.105
Mehdizadehi, S., Najarianii, S., Farmanzadiii, F., Khoshgoftariv, M. (2010). 'Biomechanical Analysis of CNS Gray Matter in Tension and Compression', AUT Journal of Electrical Engineering, 42(1), pp. 45-50. doi: 10.22060/eej.2010.105
Mehdizadehi, S., Najarianii, S., Farmanzadiii, F., Khoshgoftariv, M. Biomechanical Analysis of CNS Gray Matter in Tension and Compression. AUT Journal of Electrical Engineering, 2010; 42(1): 45-50. doi: 10.22060/eej.2010.105

Biomechanical Analysis of CNS Gray Matter in Tension and Compression

Article 6, Volume 42, Issue 1, Winter and Spring 2010, Page 45-50  XML PDF (301 K)
Document Type: Research Article
DOI: 10.22060/eej.2010.105
Authors
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).
Abstract
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.
Keywords
Biomechanics; Brain Tissue; Mechanical Behavior; Tension; Compression
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