Blast resistance of metallic double arrowhead honeycomb sandwich panels with different core configurations under the paper tube-guided air blast loading

2021 ◽  
pp. 106457
Author(s):  
Ganchao Chen ◽  
Yuansheng Cheng ◽  
Pan Zhang ◽  
Sipei Cai ◽  
Jun Liu
Keyword(s):  
Blast Resistance ◽  
Sandwich Panels ◽  
Blast Loading ◽  
Air Blast ◽  
Honeycomb Sandwich ◽  
Air Blast Loading

Numerical investigation on the dynamic response of foam-filled corrugated core sandwich panels subjected to air blast loading

2017 ◽  
Vol 21 (3) ◽  
pp. 838-864 ◽  
Author(s):  
Yuansheng Cheng ◽  
Tianyu Zhou ◽  
Hao Wang ◽  
Yong Li ◽  
Jun Liu ◽  
...  
Keyword(s):  
Total Energy ◽  
Energy Absorption ◽  
Sandwich Panels ◽  
Blast Loading ◽  
Front Face ◽  
Back Side ◽  
Air Blast ◽  
Foam Filled ◽  
Blast Performance ◽  
Air Blast Loading

The ANSYS/Autodyn software was employed to investigate the dynamic responses of foam-filled corrugated core sandwich panels under air blast loading. The panels were assembled from metallic face sheets and corrugated webs, and PVC foam inserts with different filling strategies. To calibrate the proposed numerical model, the simulation results were compared with experimental data reported previously. The response of the panels was also compared with that of the empty (unfilled) sandwich panels. Numerical results show that the fluid–structure interaction effect was dominated by front face regardless of the foam fillers. Foam filling would reduce the level of deformation/failure of front face, but did not always decrease the one of back face. It is found that the blast performance in terms of the plastic deflections of the face sheets can be sorted as the following sequence: fully filled hybrid panel, front side filled hybrid panel, back side filled hybrid panel, and the empty sandwich panel. Investigation into energy absorption characteristic revealed that the front face and core web provided the most contribution on total energy absorption. A reverse order of panels was obtained when the maximization of total energy dissipation was used as the criteria of blast performance.

Experimental study on the dynamic response of foam-filled corrugated core sandwich panels subjected to air blast loading

2016 ◽  
Vol 105 ◽  
pp. 67-81 ◽  
Author(s):  
Pan Zhang ◽  
Yuansheng Cheng ◽  
Jun Liu ◽  
Yong Li ◽  
Changzai Zhang ◽  
...  
Keyword(s):  
Experimental Study ◽  
Dynamic Response ◽  
Sandwich Panels ◽  
Blast Loading ◽  
Air Blast ◽  
Foam Filled ◽  
Air Blast Loading

scholarly journals Dynamic Response and Optimal Design of Curved Metallic Sandwich Panels under Blast Loading

2014 ◽  
Vol 2014 ◽  
pp. 1-14 ◽  
Author(s):  
Chang Qi ◽  
Shu Yang ◽  
Li-Jun Yang ◽  
Shou-Hong Han ◽  
Zhen-Hua Lu
Keyword(s):  
Dynamic Response ◽  
Energy Absorption ◽  
Sandwich Panel ◽  
Blast Resistance ◽  
Blast Loading ◽  
Outer Face ◽  
Air Blast ◽  
Blast Response ◽  
Artificial Neural Network Ann ◽  
Air Blast Loading

It is important to understand the effect of curvature on the blast response of curved structures so as to seek the optimal configurations of such structures with improved blast resistance. In this study, the dynamic response and protective performance of a type of curved metallic sandwich panel subjected to air blast loading were examined using LS-DYNA. The numerical methods were validated using experimental data in the literature. The curved panel consisted of an aluminum alloy outer face and a rolled homogeneous armour (RHA) steel inner face in addition to a closed-cell aluminum foam core. The results showed that the configuration of a “soft” outer face and a “hard” inner face worked well for the curved sandwich panel against air blast loading in terms of maximum deflection (MaxD) and energy absorption. The panel curvature was found to have a monotonic effect on the specific energy absorption (SEA) and a nonmonotonic effect on the MaxD of the panel. Based on artificial neural network (ANN) metamodels, multiobjective optimization designs of the panel were carried out. The optimization results revealed the trade-off relationships between the blast-resistant and the lightweight objectives and showed the great use of Pareto front in such design circumstances.

scholarly journals Numerical Analysis of Dynamic Response of Corrugated Core Sandwich Panels Subjected to Near-Field Air Blast Loading

2014 ◽  
Vol 2014 ◽  
pp. 1-16 ◽  
Author(s):  
Pan Zhang ◽  
Yuansheng Cheng ◽  
Jun Liu
Keyword(s):  
Dynamic Response ◽  
Failure Modes ◽  
Near Field ◽  
Three Dimensional ◽  
Sandwich Panels ◽  
Blast Loading ◽  
Front Face ◽  
Air Blast ◽  
Solid Plate ◽  
Air Blast Loading

Three-dimensional fully coupled simulation is conducted to analyze the dynamic response of sandwich panels comprising equal thicknesses face sheets sandwiching a corrugated core when subjected to localized impulse created by the detonation of cylindrical explosive. A large number of computational cases have been calculated to comprehensively investigate the performance of sandwich panels under near-field air blast loading. Results show that the deformation/failure modes of panels depend strongly on stand-off distance. The beneficial FSI effect can be enhanced by decreasing the thickness of front face sheet. The core configuration has a negligible influence on the peak reflected pressure, but it has an effect on the deflection of a panel. It is found that the benefits of a sandwich panel over an equivalent weight solid plate to withstand near-field air blast loading are more evident at lower stand-off distance.

Dynamic response of sandwich panels with multi-layered aluminum foam/UHMWPE laminate cores under air blast loading

2020 ◽  
Vol 138 ◽  
pp. 103475 ◽  
Author(s):  
Sipei Cai ◽  
Jun Liu ◽  
Pan Zhang ◽  
Chunpeng Li ◽  
Yuansheng Cheng
Keyword(s):  
Dynamic Response ◽  
Aluminum Foam ◽  
Sandwich Panels ◽  
Blast Loading ◽  
Air Blast ◽  
Air Blast Loading

Dynamic response of metallic trapezoidal corrugated-core sandwich panels subjected to air blast loading – An experimental study

2015 ◽  
Vol 65 ◽  
pp. 221-230 ◽  
Author(s):  
Pan Zhang ◽  
Jun Liu ◽  
Yuansheng Cheng ◽  
Hailiang Hou ◽  
Chunming Wang ◽  
...  
Keyword(s):  
Experimental Study ◽  
Dynamic Response ◽  
Sandwich Panels ◽  
Blast Loading ◽  
Air Blast ◽  
Air Blast Loading

Experimental investigation on the performance of PVC foam core sandwich panels under air blast loading

2019 ◽  
Vol 226 ◽  
pp. 111081 ◽  
Author(s):  
Tianyu Zhou ◽  
Pan Zhang ◽  
Wei Xiao ◽  
Jun Liu ◽  
Yuansheng Cheng
Keyword(s):  
Experimental Investigation ◽  
Sandwich Panels ◽  
Blast Loading ◽  
Foam Core ◽  
Air Blast ◽  
Air Blast Loading
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