不同规格分牙簧的应力分析

Stress analysis of separators with different specifications

目的 分析不同规格分牙簧的应力 ,找出形状结构因素对分牙簧力学行为影响的规律。方法 对分牙簧进行一维实体网格划分并输入材料性能参数。然后按力作用点的位移不同 ,从小到大逐步加载 ,应用ANSYS分析软件计算不同型号分牙簧在不同应变量时产生的应力值。结果分牙簧的应力大小与力臂长短有关 ,力臂短者产生的力值大 ;分牙簧的应力随位移的增加而增大 ,其变化规律可用公式F =A +Bx表示。结论 分牙簧应力随其尺寸与力作用点位移而变化 ,临床医生可根据矫治需要在一定范围内选择适宜的分牙簧以调节其作用力值。

Objective To evaluate the shape and structure of different separators affecting the mechanical behavior . Methods The stress of different separators was analyzed by ANSYS software. Various separators were meshed into one-dimensional solid elements and the material character parameters were inputted. The loads were added gradually. Results The stress was related to the arm of force and the point of force application . Conclusions The force applied can be controlled by selecting different separators .