Simulation of Jet Penetrating Concrete Target Process

2019 3rd International Workshop on Renewable Energy and Development

能源学;生态环境科学

Zhao, Xuan^1 ; Duan, Congmin^1 ; Tang, Jianbo^1 ; Xue, Shifeng^1

College of Pipeline and Civil Engineering, China University of Petroleum, Qingdao

266580, China^1

关键词: Effectiveness evaluation;    Explicit dynamics;    Lagrange algorithm;    Mechanical problems;    Multilayer targets;    Penetration process;    Perforating charges;    Velocity at collision;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/267/4/042013/pdf
DOI  :  10.1088/1755-1315/267/4/042013

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Jet penetrate concrete target is an extremely complicated mechanical problem. Based on explicit dynamic analysis program AUTODYN, the numerical model to simulate the process of jet penetrating multi-layer target (perforating gun, casing and concrete target) is established with Lagrange method. The large deformation, high strain rate dynamic processes of penetrating multilayer targets by jet was studied in this work. Numerical results show consistent agreements with experimental results, the errors of penetration depth and diameter are 4.27% and 5.26%, respectively. The dynamic response of the penetration process was discussed, including the shock wave and velocity at collision point of the tunnel. The simulation model and Lagrange algorithm used in this research were proved to be reasonable and feasible. This approach can provide a guidance for effectiveness evaluation of oil perforating charge.