Simulation Study on the Deflection Response of the 921A Steel thin plate under Explosive Impact Load

2017 International Symposium on Application of Materials Science and Energy Materials

材料科学;能源学

Zhang, Yu-Xiang^1 ; Chen, Fang^1 ; Han, Yan^1

School of Mechanical and Electrical Engineering, Beijing Institute of Technology, Beijing, China^1

关键词: Elastic-plastic deformation;    Explosion impacts;    Explosive impact load;    High intensity;    Initial conditions;    Response equations;    Simulation studies;    Theoretical calculations;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/322/2/022054/pdf
DOI  :  10.1088/1757-899X/322/2/022054

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The Ship cabin would be subject to high-intensity shock wave load when it is attacked by anti-ship weapons, causing its side board damaged. The time course of the deflection of the thin plate made of 921A steel in different initial conditions under the impact load is researched by theoretical analysis and numerical simulation. According to the theory of elastic-plastic deformation of the thin plate, the dynamic response equation of the thin plate under the explosion impact load is established with the method of energy, and the theoretical calculation value is compared with the result from the simulation method. It proved that the theoretical calculation method has better reliability and accuracy in different boundary size.