In this paper, the numerical simulations for rockfall protection net by means of 3D elasto-plastic finite element analysis were conducted taking the falling height of the weight and the loading position as variables. Here, the steel net and wire-rope were modeled by using shell element and cable element, respectively. From this study, the following results are obtained: 1) the impact force and displacement at loading point can be appropriately evaluated by applying the proposed numerical method until it reaches maximum displacement; and 2) however, since the rebound behavior of protection net cannot be properly simulated, it is necessary to investigate the modeling of net and stiffness between net and wire-rope.
水平に設置された落石防護網の耐衝撃挙動に関する衝撃応答解析
JSSCPCS_23_657_663
(2.92MB)
