scholarly journals A double-cell foam-filled composite block for efficient energy absorption under axial compression

2009 ◽  
Vol 89 (3) ◽  
pp. 399-407 ◽  
Author(s):  
Siavash T. Taher ◽  
Rizal Zahari ◽  
Simin Ataollahi ◽  
Faizal Mustapha ◽  
ShahNor Basri
2008 ◽  
Vol 29 (3) ◽  
pp. 391-408 ◽  
Author(s):  
Siavash T. Taher ◽  
Azim A. Oshkour ◽  
Rizal Zahari ◽  
Faizal Mustapha ◽  
Shahnor Basri

2021 ◽  
Vol 160 ◽  
pp. 107364
Author(s):  
Li Wang ◽  
Boyi Zhang ◽  
Jian Zhang ◽  
Yuexin Jiang ◽  
Wei Wang ◽  
...  

Author(s):  
Salamah Y. Maaita ◽  
Golam M. Newaz

This paper introduces a new technique to increase the specific energy absorption (SEA) for foam-filled circular aluminum tube significantly. The idea is to first utilize initiators to deform the foam inside an aluminum tube under the effects of constraints of the tube wall. Then the aluminum tube and foam are crushed together. In this study, the foam with 190mm length has been filled inside a 200mm aluminum tube and attached to two 50 mm length initiators (one initiator in each side of the tube). Initially, the foam-filled tube has been compressed a total of 90mm by entering and sliding the two initiators inside the aluminum tube. Then the foam, two initiators and the aluminum tube have been compressed together for another 30 mm (The total crushing distance is 120mm). The technique was utilized under quasi-static and dynamic axial compression loading conditions and is found to increase the specific energy absorption (SEA) for the foam-filled circular aluminum tube up to 30% more compared to pure aluminum tubes for quasi-static and dynamic axial compression loading conditions. Both experimental and analytical/computational results are presented.


2014 ◽  
Vol 875-877 ◽  
pp. 534-541 ◽  
Author(s):  
Chawalit Thinvongpituk ◽  
Nirut Onsalung

In this paper, the experimental investigation of polyurethane (PU) foam-filled into circular aluminum tubes subjected to axial crushing was presented. The purpose of this study is to improve the energy absorption of aluminium tube under axial quasi-static load. The aluminium tube was made from the AA6063-T5 aluminium alloy tubes. Each tube was filled with polyurethane foam. The density of foam was varied from 100, 150 and 200 kg/mP3P including with empty tube. The range of diameter/thickness (D/t) ratio of tube was varied from 15-55. The specimen were tested by quasi-static axial load with crush speed of 50 mm/min using the 2,000 kN universal testing machine. The load-displacement curves while testing were recorded for calculation. The mode of collapse of each specimen was analyzed concerning on foam density and the influence of D/t ratio. The results revealed that the tube with foam-filled provided significantly increment of the energy absorption than that of the empty tube. While the density of foam and D/t ratios increase, the tendency of collapse mode is transformed from asymmetric mode to concertina mode.


2019 ◽  
Vol 50 (11) ◽  
pp. 5494-5509 ◽  
Author(s):  
M. Salehi ◽  
S. M. H. Mirbagheri ◽  
M. Arabkohi

2017 ◽  
Vol 21 (3) ◽  
pp. 838-864 ◽  
Author(s):  
Yuansheng Cheng ◽  
Tianyu Zhou ◽  
Hao Wang ◽  
Yong Li ◽  
Jun Liu ◽  
...  

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.


Sign in / Sign up

Export Citation Format

Share Document