Study on Separation Dynamics of Explosive Bolt and Test Verification

Abstract

In order to simulate the dynamic process after the separation of explosive bolt, and to analyze whether the impact force of the explosion could cause the damage of the explosive bolt box structure. The explicit dynamic method of ABAQUS was adopted in this paper to carry out simulation analysis on the process of the explosive bolt passing through the corner piece and hitting the buffer block after unlocking, and to evaluate the strength and deformation of the bolt box under impact load. The verification test of explosive bolt was carried out to evaluate the reliability of the design, and the test results indicated that the designed explosive bolt box achieves a successful acceptance of the explosive bolt of the separation with design margin, the structure of the box does not have obvious deformation under the impact load, and the strength design of the explosive bolt box meets the use requirements.