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Predictions of Blast Induced Overpressures on Isolated and Shielded Structures

机译：孤立和屏蔽结构爆炸诱发超压的预测

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A simple model has been developed to predict the overpressure on a building exposed to blast waves created by large scale chemical or nuclear explosions. This model may be used to predict the blast loading on buildings which are either isolated or shielded by nearby structures. The model is based on a simple linear formulation for the equalization of pressure on the building face with that of the free-field. Dynamic effects are included in the model by the use of an empirical drag coefficient. The effects of reflected shock waves between adjacent buildings have also been taken into account, together with diffraction losses incurred by the blast wave due to interactions with adjacent structures. Comparison of the model with data from both shock tube and free-field experiments indicate reasonable agreement for several test configurations. This model should prove to be useful as input for existing models which predict the structural damage to buildings exposed to blast waves. (Author)

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