Pdf modelling and simulation of fibre metal laminates. The fibremetal composite technology combines the advantages of metallic materials and fibre reinforced matrix systems. It forms part of the airbus a380 fuselage and the leading edge of the tail surfaces. Fibre metal laminates an introduction ad vlot springer. Fiber metal laminates, stamp forming, finite element modeling 1.
Index terms fiber metal laminates fml, mechanical properties, computational models. Influence of porosity on the interlaminar shear strength of. In 1995, an aircraft freight container made out of glare became the first container certified by the federal aviation administration faa for blast resistance. However, more than often, perfect interfaces are not achieved or their quality is not guaranteed. Delft university of technology directionality of damage. Fibre metal laminate fml is a highperformance material made up of alternating layers of metal alloy and composite bonded together with an adhesive. Costa 2005, an engineering solution for using coarse meshes in the simulation of delamination with cohesive zone models, nasa technical memorandum, nasatm20052547. Galvanic corrosionresistant carbon fiber metal laminates 3 al2o3 layer and a sio2 nanoparticle reinforced inorganicorganic hybrid solgel coating layer. Compared to monolithic alloys, these materials combine lower density, higher strength and improved damage tolerance. Fibre metal laminates fmls are the combination of a composite and metallic skin layer with an adhesive agent.
The fibre metal composite technology combines the advantages of metallic materials and fibre reinforced matrix systems. Muthukumar chandrasekar, a, mohamad ridzwan ishak, a mohd sapuan salit, b,c zulkiflle leman, b,c mohammad jawaid, d and jesu naveen b concerns regarding the disposal, degradability, and recycling of synthetic fibres used in composite materials have highlighted the need. Commercially available fml include arall, carall, and glare based on the synthetic fibres such as aramid, carbon, and glass, respectively asundi and choi 1997. Fmls were originally developed for aeronautical engineering applications to possess high fatigue tolerance 1. They consist of thin metallic sheets bonded together with fibre reinforced adhesive matrices. Vlot 2001, fibre metal laminates an introduction, kluywer academic publishers. Flms are a kind of hybrid material consisting in metal sheets alternating to composite material laminates. Introduction continuous increases in fuel price and stricter environmental regulations have brought new priorities for automotive industries.
The unidirectional prepreg layers may be aligned in different directions to suit predicted stress conditions. A projectile of hemispherical head with a diameter of 36. The main contribution of the present paper is the determination of the modei fracture of metal composite interface region for fibre metal laminates fmls. Introduction fibremetal laminates fmls are hybrid laminates built up from thin aluminium alloy sheets bonded into laminates by intermediate thin. The concept of fibre metal laminates fmls has been successfully developed to a mature structural material technology, as demonstrated with the large. Typical fmls are prepared by stacking alternating layers of metal foils. Fiber metal laminate fml is one of a class of metallic materials consisting of a laminate of several thin metal layers bonded with layers of composite material. View fibre metal laminates research papers on academia.
This allows the material to behave much as a simple metal structure. Determination of ctod in fibre metal laminates c by astm. After the demise of the original fokker aircraft company in 1996, focused research continued at tu delft, in close cooperation with alcoa new york city, ny, us, dutch chemical company akzo nobel. Such hybrid laminates combine the best features of the metal and.
The concept, invented in the late 1970s, has resulted in laminates like arall and glare. Glare has been most often applied in the aviation field. Fmls must be subjected to the same stringent qualification procedures as. Introduction fibre metal laminates fml belong to the group of hybrid composite materials dynamically developed from the beginning of 21 st century. Laminates have become mature structural materials for. Pdf introduction of nanoclaymodified fiber metal laminates. Composite materials have been preferred above conventional metals, thanks to its high specific strengthstiffness and fatigue resistance. Mechanical properties evaluation of the carbon fibre. Pdf this chapter surveys the applications and properties of the fibre metal. Fiber metal laminate fml is a family of hybrid composite.
They consist of alternatively arranged thin layers of metal and layers of polymer fibre composite permanently bonded together. In this work, strength characteristics of fibre metal laminates and fibre laminates are studied and compared as follows. Fibre metal laminates fmls, a hybrid of metals and fibre reinforced polymers frps, are a relatively new family of materials available to aircraft designers. Introduction, definition, classification, behaviors of unidirectional composites analysis of lamina. The first material is made of aluminum alloys, aramid fibres and an epoxy resin, glare laminates use similar constituents except for the aramid. Hybrid laminates, impact response, finite element analysis, damage. Jul 12, 2017 the fokkertu delft collaboration led to the concept of fiber metal laminates fmls as a distinct class of hybrid composites for aircraft structure. Glare have been designed considering ideal mechanical properties determined by the classical lamination theory. The material, consisting of alternate layers of aluminium and glass fibre reinforced epoxy, is however complicated to model numerically. Keywords ndt ultrasonic method phased array fml fibre metal laminates 1 introduction fibre metal laminates fmls are. Analytical modelling and numerical simulation of the. Impact, fibre metal laminates, hashin 3d criteria, finite element, progressive failure 1.
Flexural strength of aluminium carbonepoxy fibre metal laminates. Introduction fibre metal laminates fmls are advanced composite structural materials that have been attracting interest from a number of researchers to investigate the impact resistance reyes and cantwell 2000. Fibremetallaminates fmls, a hybrid of metals and fibrereinforced polymers frps, are a relatively new family of materials available to aircraft designers. Directionality of damage growth in fibre metal laminates and hybrid structures gupta, mayank doi 10. The fokkertu delft collaboration led to the concept of fibermetal laminates fmls as a distinct class of hybrid composites for aircraft structure. Mechanical properties of a novel fibre metal laminate. A computationally efficient and reliable finite element model was developed to account. Ad vlot, jan willem gunnink fibre metal laminates an introduction ad vlot, jan willem gunnink fibre metal laminates were developed at delft university of technology in the netherlands, from the beginning of the 1980s. Dynamic failure of fibremetal laminates under impact. Fibremetal laminates have been used over the last few decades in many industrial sectors. Nondestructive damage detection in fibre metal laminates. Paper open access experimental analysis of fibre metal laminates. The main contribution of the present paper is the determination of the modei fracture of metalcomposite interface region for fibre metal laminates fmls.
Introduction in most of industrial and structural applications the important parameters in material selection are specific strength, weight and cost. Modei metalcomposite interface fracture testing for fibre. Pdf with the introduction of fibre metal laminates fmls as a fatigue damage tolerant material concept in aeronautics, an interesting field. The weight optimization of fibre metal laminates with perforation about 25% than that of without perforations. Based upon all the research, initial fibre metal laminates material, arall aramid fibre reinforced aluminium laminate was introduced at 1978 in the faculty. The idea of putting fibre reinforcement in the adhesive bond lines between aluminium alloys has been researched at many laboratories over the past three decades. Fibre metal laminates have been used over the last few decades in many industrial sectors. Fibre metal laminates is a new class of advanced aerospace materials. These researches made it possible to develop first fibre metal laminates. Fibre metal laminates were developed at delft university of technology in the.
The dynamic failure of fibre metal laminates was investigated experimentally. The first material is made of aluminum alloys, aramid fibres and an epoxy resin, glare laminates use similar constituents except for the aramid fibres. Influence of porosity on the interlaminar shear strength. Fiber metal laminate structures from laboratory to.
Fibre metal laminate an overview sciencedirect topics. Later on, the concept was found to hold high resistance against impact loading 2. Directionality of damage growth in fibre metal laminates and hybrid structures. Fibre metal laminates, background, bonding types and applied test methods article in materials and design 327. Dynamic failure of fibremetal laminates under impact loading. This means that among other assumptions, perfect bonding conditions between layers are assumed. Nov 30, 2001 fibre metal laminates were developed at delft university of technology in the netherlands, from the beginning of the 1980s. At first, the sulfuric acid anodizing is conducted for 2024t3 aluminum alloy sheet following a conventional anodizing process. This paper deals with the modelling of fml and is focused on a detailed.
An interesting material solution is represented by fibre metal laminates fml. A hybrid dcb configuration is proposed to investigate the modei fracture between metal composite interface using experimental and numerical approaches. Fibre metal laminates fml represent a family of hybrid materials, consisting of alternating layers of thin metal sheets and fibre reinforced epoxies. Tests are conducted to determine the mechanical properties of the fibre metal laminate and the results are tabulated. Vogelesang and his team as a family of hybrid materials that consist of bonded thin metal sheets and fibres embedded in adhesive, i. This is a new family of hybrid materials consisting of thin metal layers bonded together by fibres embedded in an adhesive. Introduction fiber metal laminates fmls are multicomponent materials utilizing metals, fibers and matrix resins. Introduction of nanoclaymodified fiber metal laminates article pdf available in engineering fracture mechanics 186 october 2017 with 208 reads how we measure reads. Fml,carbon fibre,aluminium alloy 6061,mechanical properties. Mechanical properties of a novel fibre metal laminate reinforced with the carbon, flax, and sugar palm fibres.
A hybrid dcb configuration is proposed to investigate the modei fracture between metalcomposite interface using experimental and numerical approaches. Impact damage characterisation of fibre metal laminates by xray computed tomography 1. By substituting steel components with lightweight material parts, there is a huge potential to. Fiber metal laminate fml is a hybrid material system that consists of thin metal sheets bonded into. Fibremetal laminates, composite materials, thermoplastic composites, lightweight structures. Glass laminate aluminum reinforced epoxy glare is a fiber metal laminate fml composed of several very thin layers of metal usually aluminum interspersed with layers of s2 glassfiber prepreg, bonded together with a matrix such as epoxy.
Introduction a fibre metal laminate or fml is one of a class of metallic materials consisting of a laminate of several thin metal layers bonded with layers of composite material. Introduction fibre metal laminates fml belong to the group of. Finite element modeling of stamp forming process on fiber. Fibre metal laminates fmls have hybrid composite structures based on thin sheets of metal alloys and plies of fibre reinforced polymeric materials3. Mechanical properties of fibremetal laminates made of. This allows the material to behave much as a simple metal structure, but with considerable specific advantages regarding properties such as metal fatigue, impact, corrosion resistance, fire resistance, weight savings, and specialized. Metal technology metal reinforced composites schliekelmannbijlmer fiber metal laminate concept, delft 1st fml application, arall on c17 development of standardglare fiber metal laminates a380 fml technology. Impact damage characterisation of fibre metal laminates by x. Aug 15, 2006 fibre metal laminates fml represent a family of hybrid materials, consisting of alternating layers of thin metal sheets and fibre reinforced epoxies. With the application of glare in the airbus a380 hybrid materials like fiber metal. Paper open access experimental analysis of fibre metal. Fibremetal laminates fmls are lightweight structural materials consisting of alternating thin layers of metal and fibrepolymer composite fig.
This is a new family of hybrid materials consisting of thin metal layers bonded. As a result of this buildup, fibre metal laminates possess a mixture of the characteristics of both metals and composite materials. Flexural strength of aluminium carbonepoxy fibre metal. Three types of woven fibre fabrics basalt, s2glass and kevlar29 were used to reinforce the aluminum sheets. Modei metalcomposite interface fracture testing for. Numerical modelling of perforation impact damage of fibre. Fibre metal laminates are hybrid composite materials built up from interlacing lay. Depth of the marks was less than the aluminium layer thickness.
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