Experimental Study on Drop-Weight Impact Response of Basalt Fiber Aluminum Laminates (BFMLs)

The basalt fiber-reinforced polymer (epoxy resin), which has even better mechanical properties than glass fiber-reinforced polymer, is a good choice for making FML (fiber-metal laminate) composite. Herein, drop-weight impact tests of basalt fiber-based FMLs (called BFMLs) were conducted in the INSTO...

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Bibliographic Details
Published in:Advances in materials science and engineering 2018-01, Vol.2018 (2018), p.1-13
Main Authors: Wang, Qingyuan, Luo, Yunrong, Zhang, Xiaoyan, Zhang, Dongliang
Format: Article
Language:English
Subjects:
Adhesives
Aluminum alloys
Aluminum base alloys
Aviation
Basalt
Breakage
Computer simulation
Delamination
Drop tests
Energy absorption
Energy dissipation
Epoxy resins
Failure analysis
Fiber composites
Fiber reinforced polymers
Fiber-metal laminates
Finite element method
Glass fiber reinforced plastics
Glass-epoxy composites
Impact response
Impact tests
Impactors
Laminates
Mechanical properties
Metal sheets
Perforation
Plastic deformation
Polymers
Strain rate
Studies
Tensile strength
Textile research
Velocity
Weight
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Summary:The basalt fiber-reinforced polymer (epoxy resin), which has even better mechanical properties than glass fiber-reinforced polymer, is a good choice for making FML (fiber-metal laminate) composite. Herein, drop-weight impact tests of basalt fiber-based FMLs (called BFMLs) were conducted in the INSTON 9520HV testing machine to investigate the low-velocity impact properties of BFMLs. The specimens were of two diameters. And the impactors had two sizes of nose, dropping from different heights. The load-deflection behavior of aluminum sheet, BFRP (basalt fiber-reinforced polymer) panel, and BFML plate and their energy dissipation patterns during impact perforation were obtained. The test results showed that aluminum alloy sheet and BFMLs had no strain rate effect, while BFRP did. It was also concluded that the behavior of the thick BFML plate was clearly affected by debonding between aluminum sheet and BFRP panel, while the behavior of the thin BFML plate was controlled by membrane force. In failure analysis, it was found that the deformation and breakage of BFRP are the main contributions to energy absorption of BFMLs which counts for more than 75%. The energy absorbed by the aluminum sheet through plastic deformation and petaling is about 20%, while the energy absorbed in debonding can be ignored. In addition, with the help of ABAQUS simulation, it was found that decreasing the value of MVF (metal volume fraction) can increase the specific energy absorption of BFMLs, but the ductility of BFMLs may decrease.
ISSN:1687-8434
1687-8442
DOI:10.1155/2018/1478951