不等间距的一维碳钢双原子模型的建立及受力分析

Establishment and Force Analysis of One-Dimensional Carbon Steel Double-Atom Model with Unequal Spacing

通过建立不等间距的碳钢一维双原子模型,得到碳钢中Fe原子和C原子的运动学方程,并解出其位移项从而得到描述其运动规律的位移解析式,并求解出碳钢中的原子在外应力作用下发生的位移u2n,u2n+1,进而得到其发生弹性形变及塑性形变的微观解释。

By establishing a one-dimensional double -atom model of carbon steel with unequal spacing, the kinematic equations of Fe and C atoms in carbon steel were obtained, and the displacement terms were solved to obtain the displacement analytical formula describing the motion of the carbon steel. The displacement u2n, u2n＋1 of the atoms in the carbon steel under the external stress were solved, and then the microscopic interpretation of the elastic deformation and plastic deformation was obtained.