Numerical Simulation of Dynamic Response of Foam Aluminum Sandwich Panel Under Impact Load

2021 ◽  
Author(s):  
Wenchao Wan ◽  
Xiaobin Li ◽  
Li Jiang ◽  
Pu Li
Keyword(s):  
Numerical Simulation ◽  
Dynamic Response ◽  
Sandwich Panel ◽  
Impact Load ◽  
Foam Aluminum

Numerical Simulation of Dynamic Response of Foam Aluminum Sandwich Panel Under Impact Load

2020 ◽  
Author(s):  
Wenchao Wan ◽  
Xiaobin Li ◽  
Li Jiang ◽  
Pu Li
Keyword(s):  
Dynamic Response ◽  
Sandwich Panel ◽  
Shear Failure ◽  
Impact Load ◽  
Impact Resistance ◽  
Sandwich Panels ◽  
Core Layer ◽  
Foam Aluminum ◽  
Element Analysis ◽  
The Impact

Abstract The impact resistance of protective structure directly affects the vitality of the ship. Since the excellent energy absorption characteristics and lightweight structural forms, foamed aluminum sandwich panels have gradually replaced stiffened panels and are widely used in local structures and components of vessels. In order to improve the protective ability of the ship structure, the impact resistance of the foam aluminum sandwich panel is studied in this paper. The deformation mechanism of the foam aluminum sandwich panel under the impact of the foam aluminum projectile is simulated by the finite element analysis, and the effect of different core thickness and core strength on the dynamic response of the sandwich panel is studied. An optimized structural form is proposed for the shear failure of foam aluminum sandwich panels. The results show that the optimized structure improves the impact resistance of foam aluminum sandwich panel and the shear resistance of the intermediate core layer. The research of this paper provides reference for the optimization of foam metal sandwich structure and its application in ship protection structure.

Numerical Simulation and Experimental Study on Fluid-Filled Hemispherical Shell under Impact

2013 ◽  
Vol 364 ◽  
pp. 172-176
Author(s):  
Hui Wei Yang ◽  
Bin Qin ◽  
Zhi Jun Han ◽  
Guo Yun Lu
Keyword(s):  
Numerical Simulation ◽  
Dynamic Response ◽  
Impact Load ◽  
Elastic Recovery ◽  
Plastic Hinge ◽  
Time History ◽  
Hemispherical Shell ◽  
History Of ◽  
Local Impact ◽  
The Impact

The dynamic response of fluid-filled hemispherical shell in mass impact is studied by experiment using DHR9401. Combining the time history of impact force with experimental observation of the deformation process, it can be seen that the dynamic response can be divided into four stages: the flattening around the impact point, the forming and expanding outward of shell plastic hinge, the plastic edge region flatten by the punch, and elastic recovery. The experimental results show that: Because the shell filled with liquid, the local impact load that the shell suffered is translated into area load and loads on the inner shell uniformly, so that it has a high carrying capacity. Numerical simulation is used to study the time history of energy absorption of different shell structures. The result shows that the crashworthiness of sandwich fluid-filled shell is improved greatly. Under the certain impact energy, deformation of its inner shell is very small, which can provide effective security space.

Numerical Simulation of Square Steel Tube Beam Filled with Steel-Reinforced High-Strength Concrete Dynamic Response under Impact Load

2011 ◽  
Vol 94-96 ◽  
pp. 2084-2087 ◽  
Author(s):  
Shun Bo Li ◽  
Jun Yang ◽  
Chen Xi Xia ◽  
Da Yong Chen
Keyword(s):  
Numerical Simulation ◽  
Dynamic Response ◽  
High Strength Concrete ◽  
Impact Load ◽  
High Strength ◽  
Steel Tube ◽  
Stress Wave Propagation ◽  
Strength Concrete ◽  
Combined Action ◽  
Square Steel Tube

Using ANSYS / LS-DYNA to study the dynamic response of square steel tube beam filled with steel-reinforced high-strength concrete under impact loading at different speeds. The numerical simulation results show that: At different conditions of speed, the concrete failure modes are different. The combined action of Steel tube and steel flange makes the stress wave propagation extremely complex in the beam, when the speed increased to a certain value, it made damage to the internal steel flange and flange lateral concrete under impact load, while the concrete between the top of steel flange and steel tube was protected by the combined action.

Dynamic response of graded PVC foam sandwich panel under air blast loads

2021 ◽  
pp. 1-15
Author(s):  
Lihong Yang ◽  
Xuyang Li ◽  
Fan Zi ◽  
Shijie Yang ◽  
Zexu Zhang ◽  
...  
Keyword(s):  
Dynamic Response ◽  
Sandwich Panel ◽  
Blast Loads ◽  
Air Blast

Dynamic response of cylindrical cavity to anti-plane impact load by using analytical approach

2014 ◽  
Vol 21 (1) ◽  
pp. 405-415 ◽  
Author(s):  
Chao-jiao Zhai ◽  
Tang-dai Xia ◽  
Guo-qing Du ◽  
Zhi Ding
Keyword(s):  
Dynamic Response ◽  
Cylindrical Cavity ◽  
Analytical Approach ◽  
Impact Load

Dynamic response of ultralight all-metallic sandwich panel with 3D tube cellular core to shallow-buried explosives

2021 ◽  
Author(s):  
DuJiang Zhang ◽  
ZhenYu Zhao ◽  
ShaoFeng Du ◽  
WeiJie Chen ◽  
Fan Yang ◽  
...  
Keyword(s):  
Dynamic Response ◽  
Sandwich Panel
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