2012 Fiscal Year Final Research Report
Impact biomechanics research for clarification of pedestrian chest injury mechanism in car-to-pedestrian accidents
| Project/Area Number |
22560101
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Materials/Mechanics of materials
|
|---|
| Research Institution | 交通安全環境研究所 (2012)
National Traffic Safety and Environment Laboratory (2010-2011) |
|---|
Principal Investigator |
MATSUI Yasuhiro 交通安全環境研究所, 自動車安全研究領域, 主席研究員 (00426230)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
MIZUNO Koji 名古屋大学, 大学院・工学研究科, 教授 (80335075)
|
|---|
| Co-Investigator(Renkei-kenkyūsha) |
HITOSUGI Masahito 獨協医科大学, 法医学教室, 准教授 (90328352)
|
|---|
| Project Period (FY) |
2010 – 2012
|
| Keywords | 生体力学 / インパクトバイオメカニクス |
|---|
| Research Abstract |
In the present study, the factors that can affect a pedestrian’s chest injuries by the front configuration of a vehicle were investigated using a finite element analysis. In a bonnet-type car-pedestrian accident, the pedestrian’s chest impacted the bonnet top at a low velocity according to the rotation of the pedestrian's entire body around the car. The stiffness of the bonnet top where the chest impacted was distributed, and thorax deformation was small and uniform. In a one-box type vehicle-pedestrian accident, the pedestrian’s chest was directly impacted by the front of the vehicle at a high velocity. Because the chest was hit by the stiff windshield frame, the thorax was deformed locally. The results showed that vehicle configuration can affect the impact velocity to the chest, and the stiffness of the vehicle structure can affect chest deformation and its mode.
|
