脑组织热-力耦合行为综述OA北大核心CSTPCD

The brain is the highest nerve center regulating physiological behaviors and functions.Brain tissue is a saturated porous material composed mainly of solid phase and liquid phase.Interactions between the solid phase,the liquid phase and the physiological environment(temperature in particular)are manifested in the coupled thermo-mechanical behaviors of brain tissue,and affected by internal temperature,seepage and stress fields.Characterization of the coupled thermo-mechanical behaviors of brain tissue is the key to understanding brain function and disease pathology.Firstly,the thermal and mechanical properties of brain tissue measured via different experimental methods were introduced,with a particular focus placed upon the effects of the strain rate and the temperature.Theoretical and numerical models describing the coupled thermo-mechanical behaviors of brain tissues were then summarized,including mechanical models,heat transfer models and cou-pled thermo-mechanical models.Finally,this important multidisciplinary field was summarized and prospected.