Bolt strength numerical simulation method and apparatus, and terminal device

Embodiments of the invention disclose a bolt strength numerical simulation method and apparatus, and a terminal device. The method comprises the steps of creating multiple first nodes around a first central node of a first threaded hole, multiple second nodes around a second central node of a second threaded hole, multiple third nodes around a first gasket and multiple fourth nodes around a secondgasket; creating a bolt model, wherein the bolt model comprises a first rod unit, a second rod unit, a third rod unit, a first rigid unit, a second rigid unit and a beam unit; and simulating the boltmodel to obtain a strength parameter of a bolt. A modeling method is simple; the design cycle of a railway vehicle is shortened; meanwhile, the accuracy of a bolt stress calculation result is improved; and reliable data support is provided for selecting and using a proper joint bolt in a railway vehicle design process. 本发明实施例公开了种螺栓的强度数值模拟方法、装置及终端设备，该方法包括：创建第螺纹孔的第中心节点周围的多个第节点、第二螺纹孔的第二中心节点周围的多个第二节点、第垫片周圈的多个第三节点和所述第二垫片周圈的多个第