Abstract
Fiber metal laminate (FML) is an advanced composite material that combine the advantageous of both fiber reinforced composites and metal alloys without sharing their individual disadvantages. When it is compared to commonly known fiber reinforced polymer composites, the FML provide better impact resistance and fatigue strength. But the production of a FML composite is a major problem since the bonding at fiber-metal interface can be poor. For this reason, the adhesion bonding capability at the fiber-metal interface was investigated in this study. Carbon fiber and glass fiber fabrics having both ±45° and 0°-90° orientation were used as fiber layers. And extremely thin stainless steel materials in the mesh form were used as metal layers. The mesh sizes of the layers are 100 and 500 respectively. The produced specimens having 12 different configurations were subjected to single lap shear tests according to ASTM D 5868-01 Standard. The results showed that 500-mesh stainless steel favorably affected the adhesion bonding strength.
Highlights
Fiber-reinforced epoxy composites are widely used in aerospace, automotive, marine, infrastructure, sporting goods and so on
Two grades of Fiber metal laminate (FML) are commercially available: ARALL which is based on aramid fibres and GLARE, which is based on high strength glass fibres [2]
Glass fiber reinforced polymer (FRP) composites having 0-90o orientation laminated with 500 mesh stainless steel yielded maximum lap shear strength (LSS) and the LSS results are minimum when it was laminated with 100 mesh stainless steel
Summary
Fiber-reinforced epoxy composites are widely used in aerospace, automotive, marine, infrastructure, sporting goods and so on. Khalili et al [7] produced FML by using basalt fibers and steel and aluminium for metal layers They invesitgated the tensile and bending properties of the basalt/epoxy FML. The existing of steel layers improved the bending and tensile strength properties compared to pure basalt fiber reinforced epoxy composites. Carrillo and Cantwell [9] manufactured thermoplastic-matrix FML by using self-reinforced polypropylene (SRPP) composite and an aluminum alloy and investigated the tensile, flexural and impact properties. They concluded that FML provided positive effects on mechanical properites compared to fiber reinforced composites. Carbon fiber and glass fiber fabrics having both ±45° and 0°-90° orientation and an extremely thin stainless steel layer in the form of
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