Session: 02-10-02 Collision and Crashworthiness 2

Paper Number: 79142

79142 - Numerical Simulation of Dynamic and Static Mechanical Response of Sinusoidal Sandwich Structure 

In order to achieve a balance between the lightweight design of the ship and the safety of the ship's structure, based on the design characteristics of corrugated plate sandwich structures and pyramid Lattice Sandwich structures, a sinusoidal beam sandwich structure is proposed in this paper, and the quasi-static compression and impact resistance of this sandwich structures with different core configuration are analyzed and studied by numerical simulation. In this study, a calculation formula for density calculation was deduced through the related theory of sandwich structure mechanical characterization. Abaqus numerical simulation was used to obtain the deformation process and failure form of the structure under quasi-static and dynamic conditions. The numerical simulation results of the impact of the modified structure using the SHPB experimental device show that the impact resistance of the structure has little correlation with the strain rate, and the magnitude of the reduction between the transmitted wave and the incident wave has occurred, showing excellent impact resistance Flameproof performance and good energy absorption characteristics. The structure proposed in this paper was compared with the existing pyramidal Lattice Sandwich structure, and it was found that the specific strength of the structure had significant advantages in quasi-static and dynamic conditions, with an increase of 70% and 54.4%, respectively.

Presenting Author: 厚漆 姚 航天与建筑工程，哈尔滨工程大学学院

Authors:

Houqi Yao College of Aerospace and Civil Engineering, Harbin Engineering University
Jia Qu College of Aerospace and Civil Engineering, Harbin Engineering University