Investigation of a Planar Shock Interaction with a Shell Metal

• Main Authors: Chung-ching Wu, 吳忠慶
• Other Authors: Fan-ming Yu
• Format: Others
• Language: zh-TW
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/50102638465945602355

碩士 === 國立成功大學 === 航空太空工程學系專班 === 95 === In this research, we took advantage of two sophisicated commercial finite element analysis software, the "Patran" and the "Dytran" developed by MSC Software to analysis the plane shock wave impulse on metal boards and to visualize the variation of strain by modeling and simulation. The simulation model is built of identical shell coppers with the thickness of 1 in the analysis software environment with distinctive consideration of different coupling techniques, namely the Lagrangian and the Eulerian to two different elements, to better illustrate the interaction of the simulation. The shock wave tube experiment results are fullfilled by measuring the strain of the shell copper with a strain gauge impacted by the incident shock wave, meanwhile, correlate the results comparatively generated by the "Dytran" to ensusre the accuracy of the numerical simulation. A successful analytical approach is conducted effectively by manipulating the "Dytran" software to simulate the phenomenon of plane shock wave impulse on metal boards, not only the cost and risk of experiments are reduced, but also the strain status is foreknown.