螺栓与螺母预应力仿真分析1. 案列(1) 模型尺寸(2) 材料参数部件弹性模量泊松比螺栓/螺母2.1105MPa0.3连接板7106MPa0.32. ABAQUS分析主要问题:(1) 对三个组件进行体划分,使体能够进行六面体划分,能够划分时体显示的颜色为黄色。(2) 螺栓/螺母与连接板之间进行接触设置,分成step1和step2,step1设置过盈量为-0.01,step2设置过盈量-0.07。摩擦系数0.15过盈量设置。如图所示:(3) 螺栓与螺母进行TIE设置,按照螺母的高度将螺栓杆进行划分,螺栓底部边缘与螺母底部边缘进行点TIE设置,如果进行面面接触,会报出错误:50 nodes may not be used with a multi-point constraint since they are also part of pretension section. The nodes have been identified in node set ErrNodeMPCPretenSec.