Experimental research of mechanical behavior of porcine brain tissue under rotational shear stress
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- 作者：Gang Li ligangsdu@foxmail.com" class="auth_mail" title="E-mail the corresponding author ; Jianhua Zhang ; jhzhang@sdu.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Kan Wang wangkan199109@163.com" class="auth_mail" title="E-mail the corresponding author ; Mingyu Wang mingyuwangsdu@hotmail.com" class="auth_mail" title="E-mail the corresponding author ; Changqing Gao gaochangqing666@126.com" class="auth_mail" title="E-mail the corresponding author ; Chao Ma symachao10@163.com" class="auth_mail" title="E-mail the corresponding author
- 关键词：Brain tissue mechanics ; Rotational shear stress ; Loading stress rate ; Nonlinear viscoelasticity
- 刊名：Journal of the Mechanical Behavior of Biomedical Materials
- 出版年：2016
- 出版时间：April 2016
- 年：2016
- 卷：57
- 期：Complete
- 页码：224-234
- 全文大小：1896 K
文摘
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Rotational shear stress control experiments is used with a standard rheometer.
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We propose a new nonlinear viscoelastic solid model matching well with tests data.
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Brain tissue shows almost complete elastic properties at high frequency area.
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Regional inhomogeneity and mechanical damage of brain tissue are strictly studied.
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Loss tangent tan δ in brain tissue shows a high uniformity of 0.25–0.45.