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- W2363944327 abstract "Using the multi-material Eulerian and Lagrangian coupling algorithm,a fluid-structure coupling of finite element model was construced,which consisted of Lagrange element for simulating steel frame structure and concrete ground,and multiple ALE element for simulating air and TNT explosives material.Numerical simulations of the shock pressure wave propagation,structural shock responses and deformation,and failure procedure of a five-storey steel frame structure in the event of an explosion near above ground were performed.The numerical analysis results show that the Lagrangian and Eulerian coupling algorithm provides a good simulation of the shock wave propagation in the media and explosion loading effects on the structure.The amplitudes of blast pressure waves near to explosion sources attenuate significantly.The columns and joints of steel beam to column in the front steel frame structure generate enormous plastic deformation subjected to intense blast shock wave,and the columns lose carrying capacity,subsequently lead to the collapse of the whole structure.The approach that considers the coupling influence between the structural deformation and the fluid load well simulates the progressive collapse process of structures,and provides an effective tool for studying the progressive collapse mechanism of structures under blast load." @default.
- W2363944327 created "2016-06-24" @default.
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- W2363944327 date "2009-01-01" @default.
- W2363944327 modified "2023-09-23" @default.
- W2363944327 title "Shock responses of steel frame structure near the ground explosion" @default.
- W2363944327 hasPublicationYear "2009" @default.
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