The Optimization the Latching Mechanism Design Based on Progressive Damage Analysis

The rocket latching force is an important parameter, prevent the rocket from falling off and affect the launch of the rocket. In order to obtain the optimal engineering design of the latching bar, this paper predicts the damage failure of two kinds of latching bar, based on the continuous damage theory and the Johnson-Cook constitutive model. Compared with the experimental data, the relative error accuracy of the ultimate strength simulation for rocket latching force is reached 5%. (paper)