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|Title:||Simulation of impulsive loading on columns using an inflatable airbag technique|
|Source:||Remennikov, A.M.,Liew, J.Y.R.,Kong, S.Y.,Kang, K.W. (2009). Simulation of impulsive loading on columns using an inflatable airbag technique. Proceedings of the 8th International Conference on Shock and Impact Loads on Structures : 521-528. ScholarBank@NUS Repository.|
|Abstract:||The purpose of this study was to simulate impulsive loading on columns by an innovative lab-based experimental technique that utilises inflatable airbags. Mild and stainless steel hollow section columns with effective lengths of 955mm and under simply supported condition were used in this study. The effect of filling the columns with sand infill as a shock absorbing material was also investigated. A custom-made airbag mounted between the steel column specimens and an impact surface was subjected to an impact of a 590kg falling mass. Each specimen was tested under two impact velocities of the falling mass. Upon impact, the pulse pressure generated in the airbag was transferred uniformly to the steel columns through a plywood panel. The air pressure, mid-span displacements and strains were measured by using a high-speed data acquisition system. From the experimental results, it was observed that the load duration was relatively long compared to the fundamental period of vibration of the columns which resulted in a quasi-static regime of response of the steel columns. The proposed technique could be relevant for studying the response of structural elements subjected to the effects of far-field explosions, as may be experienced in the petrochemical and mining industries.|
|Source Title:||Proceedings of the 8th International Conference on Shock and Impact Loads on Structures|
|Appears in Collections:||Staff Publications|
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