Off-axis fatigue behaviour and its damage mechanics modelling for unidirectional fibre–metal hybrid composite: GLARE 2

Kawai, Masamichi; Hachinohe, Atsushi; Takumida, K.; Kawase, Yuko

doi:10.1016/s1359-835x(00)00135-4

Cited by 46 publications

(17 citation statements)

References 22 publications

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“…The FMLs are laid up by alternating thin sheets of high strength aluminum alloy and fiber/epoxy laminae. These materials can be grouped into three categories according to different fiber-adhesive laminae: Aramid-fiberReinforced Aluminum (ARALL); Glass-fiber-Reinforced Aluminum (GLARE) and Carbon-fiber-Reinforced Aluminum (CARAL) Laminates [19][20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of adhesion of continuous fiber–epoxy composite/aluminum laminates

Botelho¹,

Silva²,

Pardini³

et al. 2004

Journal of Adhesion Science and Technology

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Continuous fiber composite/metal laminates (FMLs) offer significant improvements over currently available composite materials for aircraft structures due to their excellent fatigue endurance and low density. Glass fiber-epoxy composite laminae and aluminum foil (GLARE) are commonly used to obtain these hybrid laminates. In this work, FMLs were produced by treating the aluminum foil to promote adhesion bonding by two methods: sulphuric chromic acid etching (SCAE) and chromic acid anodization (CAA). The surface treatments were evaluated by contact angle, roughness and scanning electron microscopy techniques. In order to compare different families of fiber composite/metal laminates, carbon fiber and glass fiber fabrics were used as reinforcements for the hybrid laminates. The adhesion of the hybrid laminates was evaluated by scanning electron microscopy (SEM) and three-point bending test. CAA resulted in better wetting properties. The interlaminar shear strength results for both carbon fiber-epoxy/metal and glass fiber-epoxy metal, were close to the interlaminar shear strength results found in the literature (approx. 40.0 MPa).

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Section: Introductionmentioning

confidence: 99%

Evaluation of adhesion of continuous fiber–epoxy composite/aluminum laminates

Botelho¹,

Silva²,

Pardini³

et al. 2004

Journal of Adhesion Science and Technology

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show abstract

“…Since then, FMLs have gained wide attention in the aerospace and space industries [7] for many advantages such as low density, high strength, higher damage tolerance to fatigue crack growth and impact damage caused by foreign objects or blast loading, corrosion prevention, fire retardation, etc. [8][9][10][11][12][13][14][15][16].…”

mentioning

confidence: 99%

“…Kawai, et al [15] investigated the off-axis fatigue behavior of a unidirectional glass-fiber reinforced fiber-metal laminate, called GLARE 2. Their results showed that the fatigue strength of GLARE 2 was reduced gradually from about twice as high as that of aluminum alloys in the longitudinal direction to almost one-half in the transverse direction.…”

mentioning

confidence: 99%

Effects of Constituents and Lay-up Configuration on Drop-Weight Tests of Fiber-Metal Laminates

Liu

Liaw

2009

Appl Compos Mater

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Impact responses and damage of various fiber-metal laminates were studied using a drop-weight instrument with the post-impact damage characteristics being evaluated through ultrasonic and mechanical sectioning techniques. The first severe failure induced by the low-velocity drop-weight impact occurred as delamination between the aluminum and fiber-epoxy layers at the non-impact side. It was followed by a visible shear crack in the outer aluminum layer on the non-impact face. Through-thickness shear cracks in the aluminum sheets and severe damage in the fiber laminated layers (including delamination between adjacent fiber-epoxy laminae with different fiber orientations) developed under higher energy impacts. The impact properties of fiber-metal laminates varied with different constituent materials and fiber orientations. Since it was punched through easily, the aramid-fiber reinforced fiber-metal laminates (ARALL) offered poorer impact resistance than the glass-fiber reinforced fiber-metal laminates (GLARE). Tougher and more ductile aluminum alloys improved the impact resistance. GLARE made of cross-ply prepregs provided better impact resistance than GLARE with unidirectional plies.

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“…In both cases, tensile stress behaviors with increasing strain were divided into three stages: the first stage of the initial linear elastic behavior, the second stage of the yielding behavior with some decrease in the slope, and the third stage showing some linear relationship again until a sudden load drop by the fracture. Kawai et al [27] reported that the yielding stage in the stress-strain curve of commercial product GLARE2 in the fiber direction corresponded to the yielding point of the monolithic Al layer. In this study, however, the slope change for each GFML began somewhat earlier than the yielding strain of 0.5 % for the monolithic Al sheet.…”

Section: Tensile Performances Of Gfmls According To Fiber Orientationmentioning

confidence: 99%

Toughness and fracture mechanisms of glass fiber/aluminum hybrid laminates under tensile loading

2007

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Tensile properties and fracture toughness of monolithic aluminum (AI), glass tiber reinforced plastics (GFRPs) and glass fiber/aluminum hybrid laminates (Gf'Ml.s) were examined in relation to the fracture processes of plain coupon and single-edge-notched specimens. Elastic modulus and ultimate tensile strength of GFMLs showed characteristic dependenceson the kind of AI, fiber orientation and the Al/fiber layer compositionratio. Fracture toughnesses Kc and G c of A-GFML-UD were comparable to those of GFRP-UD and were much superior to monolithic AI. However, GFML with a transverse crack parallel to the fiber layer deteriorated largely in toughness. Microscopic observation of the fracture zone in the vicinity of the crack tip revealed various modes of micro-cracksin the respective layers as well as fiber fractures and delamination between fiber/Al layers. Such damage advances in GFMLs dependent on the orientation ofthe fiber layer and the AI/fibercompositionratio strongly influenced the strength and toughness ofGFMLs.

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Off-axis fatigue behaviour and its damage mechanics modelling for unidirectional fibre–metal hybrid composite: GLARE 2

Cited by 46 publications

References 22 publications

Evaluation of adhesion of continuous fiber–epoxy composite/aluminum laminates

Evaluation of adhesion of continuous fiber–epoxy composite/aluminum laminates

Effects of Constituents and Lay-up Configuration on Drop-Weight Tests of Fiber-Metal Laminates

Toughness and fracture mechanisms of glass fiber/aluminum hybrid laminates under tensile loading

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