Fatigue of Metal-Composite Joints with Penetrative Reinforcement

Parkes, P.N.; Butler, Richard; Almond, D.P.

doi:10.2514/6.2013-1879

Cited by 17 publications

(17 citation statements)

References 5 publications

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“…Although shear strength of single lap joints is apparent shear strength and single lap joints do introduce normal stresses especially at the ends of the overlap [13], the joints simplify the manufacture process and make the joints quality more reliable for it is difficult for double lap joints to achieve desired joints shape [3]. Moreover, single lap joints provide more freedom of layup design (stacking sequences) and are convenient to detect their damage growth [10].…”

Section: Single Lap Joint (Slj) Manufacturementioning

confidence: 99%

“…In this work, electron beam surfi-sculpt (EBS) makes protrusions on metal adherends through multiple relative movement between electron beam and the metal surface [1, 2] and form surfi-sculpts using the material of metal adherends, which is more flexible than other technologies, such as cold metal transfer (CMT) [3] and additive layer manufacture (ALM) [4]. Although limited researches on this joining technology have been reported on the field of mechanical properties and damage tolerance [3,[5][6][7][8][9][10][11][12], there is no study in the effect of composite design on joints' mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

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The effect of composite orientation on the mechanical properties of hybrid joints strengthened by surfi-sculpt

Xiong

Blackman

Dear

et al. 2015

Composite Structures

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Section: Single Lap Joint (Slj) Manufacturementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The effect of composite orientation on the mechanical properties of hybrid joints strengthened by surfi-sculpt

Xiong

Blackman

Dear

et al. 2015

Composite Structures

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“…The rough surface finish obtained from powder-based ALM-which in most applications is unwanted and requires post-processing steps-is advantageous in the case of hybrid joints as it increases the total surface area of the interface, which in turn improves adhesion [12,13].…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical studies on the braiding of carbon fibres over structured end-fittings for the design and manufacture of high performance hybrid shafts

Sun

Kawashita

Wollmann

et al. 2018

Prod. Eng. Res. Devel.

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Braiding is an attractive manufacturing method for tubular elements such as hollow shafts and struts. One of the main challenges however is the integration of suitably performing end-fittings. Recent advances in additive layer manufacture have enabled the fabrication of end-fittings which can be 'co-impregnated' or 'co-cured' with the fibre preform in a single step, i.e. without the need for secondary adhesive bonding. This requires the introduction of protrusions onto the surface of the end-fitting to promote mechanical interlocking with the fibres. However, the lack of accurate modelling tools for the simulation of this manufacturing process means that much empiricism is currently used in the design of such structures. A novel numerical framework is presented here for the full-scale simulation of the braiding process over structured end-fittings. Nonlinear finite element analysis is applied at the meso-scale, with strands of beam elements representing individual yarns and meshed surfaces modelling the mandrel and tooling. Penalty-based contact formulations are then used to simulate all inter-yarn and yarn-metal interactions, enabling detailed predictions of fibre paths around surface protrusions. In order to verify and validate this numerical framework, a series of full-scale braiding experiments was conducted using additivelymanufactured thermoplastic mandrels. Final braid patterns as well as the occurrence of braid imperfections were investigated and compared to model predictions. It is shown that the proposed modelling strategy reproduces well the trends observed experimentally in terms of final braid quality. A parametric study was then conducted on the effects of initial end-fitting alignment with respect to oncoming yarns, suggesting that better control over this parameter could reduce considerably the occurrence of braid imperfections.

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“…Progress has been made on methods like zpinning [1,2], HYPER joints [3] and cold metal transfer (CMT) welded pins [4] to name a few. An innovative joining technique features a low-thickness sheet of stainless steel or titanium with out of plane bent reinforcing elements, positioned between two carbon fiber reinforced polymer (CFRP) laminates before or during the co-bonding process [5,6].…”

Section: Interfacial Phenomena In Metallic Z-reinforced Cfrp Joints Amentioning

confidence: 99%

Interfacial phenomena in metallic z-reinforced CFRP joints after hygrothermal ageing

Jürgens¹

2017

Zeitschrift Kunststofftechnik

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Fatigue of Metal-Composite Joints with Penetrative Reinforcement

Cited by 17 publications

References 5 publications

The effect of composite orientation on the mechanical properties of hybrid joints strengthened by surfi-sculpt

The effect of composite orientation on the mechanical properties of hybrid joints strengthened by surfi-sculpt

Experimental and numerical studies on the braiding of carbon fibres over structured end-fittings for the design and manufacture of high performance hybrid shafts

Interfacial phenomena in metallic z-reinforced CFRP joints after hygrothermal ageing

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