Rheological regional properties of brain tissue studied under cyclic creep/ recovery shear stresses

1st International Conference on Rheology and Modeling of Materials

物理学;材料科学

Boudjema, F.^1,2 ; Lounis, M.^1,2 ; Khelidj, B.^2 ; Bessai, N.^1

USTO-MB, LAAR Laboratory, Physics Department, Oran

31000, Algeria^1

Khemis Miliana University, FIMA Laboratory, Khemis Miliana

44225, Algeria^2

关键词: Corona radiata;    Corpus callosum;    Creep recovery;    Fluid viscoelastic;    Non-linear viscoelastic modeling;    Repeated creeps;    Rheological property;    Static conditions;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/602/1/012029/pdf
DOI  :  10.1088/1742-6596/602/1/012029

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The rheological properties of brain tissue were studied by repeated creep-recovery shear tests under static conditions for different regions. Corpus callosum CC, Thalamus Th and Corona radiata CR. Non-linear viscoelastic model was also proposed to characterize the transient/steady states of shear creep results. From the creep-recovery data it was obvious that the brain tissues show high regional anisotropy. However. the both samples exhibit fluid viscoelastic properties in the first shear stress cycle of 100 Pa, while this behaviour evolutes to solid viscoelastic with cyclic effect.