Experimental and numerical investigation of Low-Velocity impact on steel wire reinforced foam Core/Composite skin sandwich panels

2021 ◽  
Vol 256 ◽  
pp. 112992
Author(s):  
P. Mohammadkhani ◽  
S.S. Jalali ◽  
M. Safarabadi
Keyword(s):  
Numerical Investigation ◽  
Steel Wire ◽  
Sandwich Panels ◽  
Low Velocity Impact ◽  
Foam Core ◽  
Low Velocity ◽  
Velocity Impact

scholarly journals The low-velocity impact and compression after impact (CAI) behavior of foam core sandwich panels with shape memory alloy hybrid face-sheets

2019 ◽  
Vol 26 (1) ◽  
pp. 517-530 ◽  
Author(s):  
Ye Wu ◽  
Yun Wan
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Sandwich Panels ◽  
Image Correlation ◽  
Low Velocity Impact ◽  
Foam Core ◽  
Low Velocity ◽  
Velocity Impact ◽  
Compression After Impact ◽  
The Impact

AbstractDue to the properties of shape memory effect and super-elasticity, shape memory alloy (SMA) is added into glass fiber reinforced polymer (GFRP) face-sheets of foam core sandwich panels to improve the impact resistence performance by many researchers. This paper tries to discuss the failure mechanism of sandwich panels with GF/ epoxy face-sheets embedded with SMA wires and conventional 304 SS wire nets under low-velocity impact and compression after impact (CAI) tests. The histories of contact force, absorbed energy and deflection during the impact process are obtained by experiment. Besides, the failure modes of sandwich panels with different ply modes are compared by visual inspection and scanning electron microscopy (SEM). CAI tests are conducted with the help of digital image correlation (DIC) technology. Based on the results, the sandwich panels embedded with SMA wires can absorb more impact energy, and show relatively excellent CAI performance. This is because the SMA wires can absorb and transmit the energy to the outer region of GFRP face-sheet due to the super-elasticity-behavior. The failure process and mechanism of the CAI test is also discussed.

On low-velocity impact response of foam-core sandwich panels

2020 ◽  
Vol 181 ◽  
pp. 105681 ◽  
Author(s):  
Xintao Huo ◽  
Hao Liu ◽  
Quantian Luo ◽  
Guangyong Sun ◽  
Qing Li
Keyword(s):  
Sandwich Panels ◽  
Impact Response ◽  
Low Velocity Impact ◽  
Foam Core ◽  
Low Velocity ◽  
Velocity Impact

scholarly journals The Low Velocity Impact Response of Foam Core Sandwich Panels with a Shape Memory Alloy Hybrid Face-Sheet

Materials ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 2076 ◽  
Author(s):  
Hao Li ◽  
Zhenqing Wang ◽  
Zhengwei Yu ◽  
Min Sun ◽  
Yanfei Liu
Keyword(s):  
Impact Damage ◽  
Sandwich Panels ◽  
Low Velocity Impact ◽  
Face Sheet ◽  
Foam Core ◽  
Low Velocity ◽  
Damage Resistance ◽  
Velocity Impact ◽  
Bottom Face ◽  
The Impact

Most foam core sandwich panels are sensitive to the impact load because of the poor toughness of thin composite face-sheets and the low strength of foam core. Superelastic shape memory alloy (SMA) wires have been applied to enhance the impact damage resistance of composite laminates in recent decades. To improve the impact damage resistance of foam core sandwich panels and to protect the foam core, SMA wires were incorporated into the face-sheets of foam core sandwich panels in this work. Eight new types of SMA hybrid sandwich panels were designed, and low-velocity impact tests were carried out at an impact energy of 35 J. The damage morphology of the impacted sandwich panels was identified by visual inspection and scanning electron microscope technology. Results indicate that the impact damage resistance of the SMA hybrid sandwich panels is enhanced. The damage area in the hybrid sandwich panels is greatly reduced and a decrease of 85.63% can be reached in the bottom face-sheet. The maximum contact force has an improvement of 28.15% when the two layers of SMA wires are incorporated into the bottom face-sheet.

Assessment on Energy Absorption of Foam Core Sandwich Panels Under Low Velocity Impact

2021 ◽  
Vol 396 (1) ◽  
pp. 2000300
Author(s):  
Oana Alexandra Mocian ◽  
Dan Mihai Constantinescu ◽  
Andrei Indreş
Keyword(s):  
Energy Absorption ◽  
Sandwich Panels ◽  
Low Velocity Impact ◽  
Foam Core ◽  
Low Velocity ◽  
Velocity Impact
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