爆炸荷载作用下空间格构式拱结构的数值模拟

Numerical simulation of space lattice arch structure subjected to blast load

为了研究空间格构式拱结构在爆炸荷载下的破坏模式,利用动力有限元软件ANSYS/LS-DYNA,建立了空间格构式拱的有限元模型,分析了不同炸药比例距离下的变形情况,结果表明:在不同的工况下,破坏模式与炸药比例距离有关,比例距离越大,结构破坏程度越小。

To know the failure modes of space lattice arch structure subjected to blast load, the dynamic finite element software ANSYS /LS- D Y - NA was used to establish the model of space lattice arch structure. Comparing the deformation under different explosive distance. The result indi-cated, the destruction of the space lattice arch structure decrease with the increase of proportion of distance.