Experimental and numerical study on the low-velocity impact behavior of foam-core sandwich panels

2013 ◽  
Vol 96 ◽  
pp. 298-311 ◽  
Author(s):  
Jie Wang ◽  
Anthony M. Waas ◽  
Hai Wang
Keyword(s):  
Numerical Study ◽  
Sandwich Panels ◽  
Low Velocity Impact ◽  
Impact Behavior ◽  
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

Experimental and numerical investigation of low velocity impact on hybrid short-fiber reinforced foam core sandwich panel

2021 ◽  
pp. 002199832110373
Author(s):  
Alireza Sharei ◽  
Majid Safarabadi ◽  
Mahmoud M Mashhadi ◽  
Reza Souri Solut ◽  
Mojtaba Haghighi-Yazdi
Keyword(s):  
Sandwich Panel ◽  
Numerical Study ◽  
Short Fiber ◽  
Low Velocity Impact ◽  
Foam Core ◽  
Fiber Reinforced ◽  
Short Fibers ◽  
Low Velocity ◽  
Velocity Impact ◽  
Impact Tests

This paper presents an experimental and numerical study of the low-velocity impact on foam core sandwich panels reinforced using hybrid short fibers. The foam cores were reinforced with carbon, aramid and carbon-aramid hybrid short fibers. The face-sheets were made of two layers of glass/epoxy, and foam cores were made of two-part polyurethane. In order to acquire the appropriate weight ratio between foam and short fibers, the weight percentage of 10% was chosen for short fibers. Comparing the experimental results proved that carbon, aramid, and carbon-aramid respectively had a better effect on increasing Young modulus by around 100 to 180 per cent. Before performing impact tests, indentation tests were conducted and based on the results for the parameter of impact energy, the value of 6  J was chosen. According to the results of impact tests and the maximum contact force, hybrid reinforced foam, aramid short fiber reinforced foam and carbon short fiber reinforced foam improved the properties respectively by 18 to 30 per cent in comparison to non-reinforced foam. Furthermore, numerical simulations were conducted via ABAQUS. After modeling face-sheet and foam separately, and verifying the results with experiments, the sandwich panel was modeled entirely while the simulation difference of 9.1% on average with the experiment results was concluded.

Sign in / Sign up

Export Citation Format

Share Document