Impact Response and Energy Absorption of Human Skull Cellular Bones

• 作 者: Jian Xiong Zhenyu Wang
• 机 构: CenterforCompositeMaterials,HarbinInstituteofTechnology,Harbin150001,PRChinaDepartmentofneurosurgery
• 出 处: 第五届先进材料与结构的力学中日双边学术研讨会(The 5th Joint-Symposium on Mechanics
• 发表日期: 2017年12期
• 关键词: Cellular structure Skull bone Energy absorption Failure mechanism Impact

　　The fracture of the skull,whose skin is made of typical lightweight cellular structures,is the most common type of traumatic brain injury.This paper presents the results of the research work on the failure mechanism and energy absorption of skull cellular bones under the low and medium velocity impact loading.The non-destructive threedimensional micro-computed tomography(Micro-CT)is used to scan the real human skull cellular bones and to obtain the structural parameters required for the reconstruction of the finite element(FE)models.The micro-structures,mechanical properties,and failure process analysis of the human skull cellular bones under impact loading are investigated.The relationships between the typical structural parameters including impact velocities,impact angles,shape of impactors,density of impactors,and various reconstructed sections and the impact behaviors are studied systematically,followed by the summarization of the impact properties and the energy absorption abilities.The results from this research will be of great significance in the clinical treatment and in revealing the mechanical mystery of the human skull cellular bones.