The Influence of Loading Rate on the Interfacial Fracture Toughness of Carbon Fiber-Metal Laminates Based on Magnesium Alloy

2011 ◽  
Vol 328-330 ◽  
pp. 1373-1376 ◽  
Author(s):  
Gong Zhi Zhu ◽  
Chang Liang Zheng ◽  
Xiao Feng Lu
Keyword(s):  
Mechanical Properties ◽  
Fracture Toughness ◽  
Magnesium Alloy ◽  
Carbon Fiber ◽  
Loading Rate ◽  
Interfacial Fracture ◽  
Interfacial Fracture Toughness ◽  
Fiber Metal Laminates ◽  
Loading Rates ◽  
Fiber Metal

Glass fiber reinforced aluminum alloy laminates, such as ARALL, GLARE are used widely for aeronautics and astronautics industry with excellent mechanical properties such as high specific strength, specific Young’s Modulus, high damage tolerance, high resistance to fatigue crack growth and good impact resistance. In order to obtain better mechanical properties, aluminum alloy plates and glass fibers were replaced by magnesium alloy plates and carbon fibers to get carbon fiber-metal laminates based on magnesium alloy. Single cantilever beams were used to examine the influence of loading rate on the interfacial fracture toughness of carbon fiber-metal laminates based on magnesium alloy. The results show that crack propagation is stable at low loading rates whereas unstable at high rates. And loading rates have slight influence on interfacial fracture toughness at low rates range from 1mm/min to 1000mm/min. The fracture toughness at high rates in impact tests is greater than at low rate.

scholarly journals Experimental investigation of free vibration analysis on fibre metal composite laminates

2019 ◽  
Vol 13 (4) ◽  
pp. 5753-5763
Author(s):  
M. N. M. Merzuki ◽  
M. R. M. Rejab ◽  
M. S. M. Sani ◽  
Bo Zhang ◽  
Ma Quanjin
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Carbon Fiber ◽  
Free Vibration ◽  
Glass Fiber ◽  
Natural Frequency ◽  
Metal Composite ◽  
Fiber Metal Laminates ◽  
Fiber Metal ◽  
Carbon Fiber Epoxy

Fiber metal laminates (FMLs) offer significant improvement over current available materials for structure materials due the excellent mechanical properties. In this work, the dynamical mechanical properties of the carbon fiber/epoxy, glass fiber/epoxy, aluminium 2024-T0, and fiber metal laminates was carried out. The composite materials have been manufactured by hot press machine. Non-destructive testing techniques are being used in the characterization of composite materials. In this work, free vibration analyses by striking an impact hammer at the free end were conducted to determine the dynamic characteristics of the samples. The results show that combination glass fiber/epoxy with aluminium 2024-T0 offer greater natural frequency value compare to carbon fiber/epoxy with aluminium 2024-T0. The laminate thickness of play a dominant role in differences of natural frequency values.    

Mechanical Analysis of Polybenzoxazine Matrix in Fiber Metal Laminates

2016 ◽  
Vol 869 ◽  
pp. 215-220
Author(s):  
Cristiane Vilas Boas ◽  
Felipe Moreno ◽  
Demetrio Jackson dos Santos
Keyword(s):  
Mechanical Properties ◽  
Carbon Fiber ◽  
High Performance ◽  
Mechanical Performance ◽  
Maximum Load ◽  
Fiber Reinforced ◽  
Scanning Calorimetry ◽  
Fiber Metal Laminates ◽  
Carbon Fiber Reinforced ◽  
Fiber Metal

In this work we investigated the application of a novel high performance polymer, polybenzoxazine, as a polymeric matrix in Fiber Metal Laminates (FML). This polymer, when applied on the development of FMLs, generated higher mechanical properties in comparison to fiber metal laminates obtained with epoxy. To investigate the mechanical performance of the polybenzoxazine matrix in FMLs, a mechanical behavior comparison was carried out among epoxy matrix laminates - glass fiber reinforced aluminum laminate (GLARE) and carbon fiber reinforced aluminum laminate (CARALL) - and FML constructed with aluminum and carbon fiber reinforced polybenzoxazine. The mechanical properties were characterized by drop weight impact and flexural methods, and the polybenzoxazine curing behavior through differential scanning calorimetry (DSC). Polybenzoxazine FML generated increasing of: 18% of maximum load, 11% of maximum elongation under flexure and 7.5% of impact energy absorption compared to other fiber metal laminates.

Effect of chemically grafted CNTs onto carbon fiber on the mechanical properties of fiber metal laminates

2021 ◽  
pp. 101005
Author(s):  
Yanan Zhang ◽  
Xinyang Liu ◽  
Fan Ji ◽  
Cheng Liu ◽  
Yubing Hu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Carbon Fiber ◽  
Fiber Metal Laminates ◽  
Fiber Metal

Optimization of Corrosive Properties of Carbon Fiber Reinforced Aluminum Laminates due to Integration of an Elastomer Interlayer

2017 ◽  
Vol 742 ◽  
pp. 287-293 ◽  
Author(s):  
Matthias Stoll ◽  
Franziska Stemmer ◽  
Sergej Ilinzeer ◽  
Kay André Weidenmann
Keyword(s):  
Mechanical Properties ◽  
Carbon Fiber ◽  
Galvanic Corrosion ◽  
Salt Spray ◽  
Neutral Salt ◽  
Fiber Reinforced ◽  
Fiber Metal Laminates ◽  
Fiber Metal Laminate ◽  
Carbon Fiber Reinforced ◽  
Fiber Metal

Fiber-Metal-Laminates (FML) show superior dynamic mechanical properties combined with low densities. The mechanical performance of for example commercially available fiber-metal-laminate, glass laminate aluminum reinforced epoxy, can be improved by the substitution of glass fibers with carbon fibers. However, carbon fiber reinforced aluminum laminate introduces a mismatch of coefficients of thermal expansion and the possibility of galvanic corrosion. The fiber-metal-laminate is altered by the integration of an elastomer interlayer which is desired to solve both problems. The high electrical resistance is supposed to inhibit the corrosion. This study focuses on the effect of galvanic corrosion caused by neutral salt spray tests on fiber-metal-laminates, the influence of an elastomer interlayer and the quantification of the residual mechanical properties. The galvanic corrosion affects the interfaces of the laminates, therefore in this study edge shear tests and flexural tests were carried out to quantify the residual properties and thereby the corrosive damage. The elastomer interlayer was found to inhibit galvanic corrosion in the salt spray chamber, whereas the fiber-metal-laminate without interlayer showed corrosive damage. Furthermore, the mechanical properties of the fiber-metal-laminate with elastomer interlayer remained constant after the corrosion tests, whilst the fiber-metal-laminate’s properties decreased with corrosive loads.

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