Abstract
In modern warfare, internal explosions have been taken as the main way of damage to ground buildings. Understanding the distribution of shock waves from an internal explosion is not only the basis of anti-explosion and explosion-proof design of structures but also the key to assess the damage effect of explosions on the battlefield. This paper identifies the propagation law of explosive shock waves in buildings using the LS-DYNA code and employs related test results to fit the engineering calculation algorithm of internal explosion-induced overpressure through numerical calculation, which can be used for the rapid assessment of damage to ground buildings. The development principle and process of the shock wave distribution calculation method are expected to provide a reference for the assess and analysis of blast damage to other ground engineering targets.
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