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8553512 
Journal Article 
Numerical analysis of dynamic response and optimization design of square sandwich panel under explosion load 
Deng, X; Li, Y; Dong, Q; Yu, P 
2020 
37 
1 
338-345 
Chinese 
In order to study the dynamic response of square honeycomb aluminum plates under blast load, a three-dimensional finite element model of TNT explosives-front and rear panels-honeycomb sandwich-air is established based on LS-DYNA nonlinear finite element software. ALE (Arbitrary Lagrangian-Eulerian) multi-material fluid-solid coupling algorithm is used to analyze the deformation mechanism plastic deformation, energy absorption structural optimization of honeycomb aluminum plate under impact load. The numerical simulation results show that with the increase of panel thickness and core height, the plastic deformation of honeycomb aluminum sheet under impact load is obviously reduced and the capability to resist deformation is enhanced. With the increase of incident angle, the various anti-explosion performance indexes of the structure become smaller and the larger the incident angle, the more obvious the effect. The side length and affected area, the panel thickness ratio and the dimensionless height of the sandwich structure are optimized locally which provides a reference for designing high quality aluminum honeycomb panels. © 2020, Editorial Department of CJAM. All right reserved. 
Explosion shock; Numerical simulation, dynamic response characteristics; Optimization analysis; Square aluminum honeycomb panel