Dynamics Response of Automotive Structural Components Due to Drop-Weight Impact Loading

• Main Authors: Jiun-Lee Lai, 賴俊利
• Other Authors: S.T. Jenq
• Format: Others
• Language: zh-TW
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/78174823136008581339

碩士 === 國立成功大學 === 航空太空工程學系碩博士班 === 91 === The purpose of this thesis is to study the force and energy curve of steel plate and composite due to low-velocity impact, and discuss the probability using composite to replace steel plate. With using software to simulate complete impact process, than compare the experimental result and simulation result. In this thesis, the steel plate and composite is applicable to the automotive industry .We do a series of low-velocity impact experiment by utilizing the Drop-Weight Tower Tester and the data acquisition system, we can get the impact force and absorbed energy histories in different velocity and different impact energy. We can understand the condition damage and energy absorbed of the specimen by the experimental histories curve, to be the basis of the choice of the materials and the assessment of the ability of impact resistance. Finally, we use LS-DYNA3D finite element analysis software to simulate the condition of actual impact,then we compare the experimental data and simulate result, there is a good resultant for low-velocity impact testing of steel plate.