Investigation of scaling effects on fiber metal laminates under tensile and flexural loading

Kashani, Milad Haghi; Sadighi, Mojtaba; Mohammadkhah, Melika; Alavijeh, Hamid Shahsavari

doi:10.1177/1464420713507411

Cited by 5 publications

(6 citation statements)

References 28 publications

(34 reference statements)

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“…When the hole diameter increased to 8 mm, the bilinear phenomenon in the curves was not that obvious and the specimens failed at a low level of strain. This phenomenon attributed to the fact that bigger hole could produce higher stress intensity factor, leading to the reduction of OHT strength and brittle failure behaviour in the specimen . Figure c is the relationship between notched/un‐notched strength ratio ( σ n / σ 0 ) and hole diameter/width ratio (D/W).…”

Section: Resultsmentioning

confidence: 99%

Open‐hole tensile behaviour and failure prediction of carbon fibre reinforced aluminium laminates

Lin

Huang

et al. 2017

Polymer Composites

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In this article, the open‐hole tensile behaviour of carbon fibre reinforced aluminium laminates (CARALL) were investigated experimentally and numerically. Two specimens with different fibre orientations ([0°/90°/0°] and [45°/0°/−45°]), consisting of T700 carbon fibre/epoxy prepreg and 2024‐T3 aluminium with a 3/2 configuration, were manufactured by the autoclave process. Damage initiation and progression were considered in modelling the CFRP layers and interface bonding layers. Isotropic hardening behaviour was defined for aluminium layers. A major contribution of this study was to reveal the failure mechanisms and failure sequences of notched CARALL with different fibre orientations by numerical method. Damage evolution processes of the two specimens were compared. Effects of hole sizes and laminate configurations (stacking sequences & stacking structures) on both the specimens were further evaluated based on simulation. Point stress failure criterion and Wu's modified point stress failure criterion were applied in comparison with the numerical method as well. POLYM. COMPOS., 39:4123–4138, 2018. © 2017 Society of Plastics Engineers

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Section: Resultsmentioning

confidence: 99%

Open‐hole tensile behaviour and failure prediction of carbon fibre reinforced aluminium laminates

Lin

Huang

et al. 2017

Polymer Composites

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“…FML'lerde kullanılan fiber/epoksi katmanlarda, fiberlerin tek yönlü ya da çapraz serilmesi de darbe direncini etkilemektedir. Çapraz yapılan serimlerde (0 ve 90 o ) elde edilen darbe direncinin tek yönlü serimlerde elde edilenden daha yüksek olduğu birçok çalışmada belirtilmiştir [71][72][73][74]. Farklı yönlerde dizilime sahip GLARE 3'ün darbe direnci, tek yönlü dizilen GLARE 2'nin darbe direncinden daha yüksektir.…”

Section: Fml Tipiunclassified

A Review on Fiber Metal Laminates and Their Usage in Aerospace Industry

Gülcan¹,

Tekkanat

Çetinkaya

2019

Mühendis Ve Makina

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Günümüzün rekabetçi havacılık ortamında, yüksek performanslı ve hafif uçakların tasarlanması, üretilmesi ve bu kapsamda, yeni üretim metodlarının ve yeni üretim malzemelerinin kullanılması önem arz etmektedir. Bu amaçla, Delft Üniversitesi tarafından geliştirilen Fiber metal laminatlar (FML), yüksek yorulma dirençlerinden dolayı, uçaklarda kullanılan geleneksel alüminyum malzemelere alternatif olarak kullanılabilecek özel kompozit malzemelerdir. Bu çalışmanın amacı FML'lerin tarihçesi, kullanım alanları, çeşitleri ve özellikleri (statik, yorulma, darbe, korozyonve ısı dayanımı) hakkında geniş bir literatür özeti sunmak ve ilerde yapılabilecek çalışmalar hakkında fikir vermektir.

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“…A number of workers have used scaling techniques to investigate size effects in metals, composite materials and sandwich structures [14][15][16][17][18][19][20][21][22][23][24]. Wen and Jones [14] developed a similitude analysis in order to investigate scaling effects in the low velocity impact response metal plates.…”

Section: Introductionmentioning

confidence: 99%

Geometrical Scaling Effects in the Mechanical Properties of 3D-Printed Body-Centered Cubic (BCC) Lattice Structures

et al. 2021

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This paper investigates size effects on the mechanical response of additively manufactured lattice structures based on a commercially available polylactic acid (PLA) polymer. Initial attention is focused on investigating geometrical effects in the mechanical properties of simple beams and cubes. Following this, a number of geometrically scaled lattice structures based on the body-centered cubic design were manufactured and tested in order to highlight size effects in their compression properties and failure modes. A finite element analysis was also conducted in order to compare the predicted modes of failure with those observed experimentally. Scaling effects were observed in the compression response of the PLA cubes, with the compression strength increasing by approximately 19% over the range of scale sizes investigated. Similar size-related effects were observed in the flexural samples, where a brittle mode of failure was observed at all scale sizes. Here, the flexural strength increased by approximately 18% when passing from the quarter size sample to its full-scale counterpart. Significant size effects were observed following the compression tests on the scaled lattice structures. Here, the compression strength increased by approximately 60% over the four sample sizes, in spite of the fact that similar failure modes were observed in all samples. Finally, reasonably good agreement was observed between the predicted failure modes and those observed experimentally. However, the FE models tended to over-estimate the mechanical properties of the lattice structures, probably as a result of the fact that the models were assumed to be defect free.

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Investigation of scaling effects on fiber metal laminates under tensile and flexural loading

Cited by 5 publications

References 28 publications

Open‐hole tensile behaviour and failure prediction of carbon fibre reinforced aluminium laminates

Open‐hole tensile behaviour and failure prediction of carbon fibre reinforced aluminium laminates

A Review on Fiber Metal Laminates and Their Usage in Aerospace Industry

Geometrical Scaling Effects in the Mechanical Properties of 3D-Printed Body-Centered Cubic (BCC) Lattice Structures

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