爆炸冲击作用下覆土波纹拱结构动力响应

Dynamic Response of the Corrugated Arch Structure Under the Action of Explosion Impact

为了进一步研究波纹钢拱形结构在爆炸荷载作用下的动力响应,采用ANSYS/LS-DYNA动力有限元数值方法,利用流固耦合算法,对覆土波纹钢板在土中爆炸冲击作用下的动力响应进行了数值模拟,分析了不同爆距下爆炸冲击对结构动力响应的影响。结果表明,随着爆炸距离增大,爆炸波在结构表面产生的动力响应明显减弱。

In order to further study the dynamic response of corrugated steel arch structure under explosive load,ANSYS/LS-DYNA software was adopted to numerically and the fluid-solid coupling algorithm simulated the dynamic response of overlying corrugated steel plate under the impact of explosion in soil.The influence of explosion impact on structural dynamic response under different detonation distances was analyzed.The results showed that the dynamic response of the explosive wave on the structural surface decreases obviously with the increase of the explosion distance.