Simulation for the Collapse of World Trade Center

Simulation for the collapse of WTC after aeroplane impact,

Proc. Int. Conf. on Protection of Structures Against Hazard, Lok TS eds. Singapore Nov. 2002. 57~60

Abstract: Mechanical simulation and parameter discussion for the collapse of WTC (World Trade Center) after aeroplane impact are presented in this paper with the dynamic FEA software of LS-DYNA. The simulation results are very close to the real situation, which means that such type of special damage process can be recurred on the computer with proper parameter and numerical model. The results show that the direct reason for the collapse is the softening of steel under fire and the chain reaction damage of floors under the impact load of upper floors. If improve the fire resistance and the ductility of the structure, the collapse may can be avoided.

Keywords: dynamic FEA; world trade center; collapse

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