Fatigue behaviour of composite–composite joints reinforced with cold metal transfer welded pins

Stelzer, Steffen; Ucsnik, Stephan; Pinter, Gerald

doi:10.1016/j.ijfatigue.2015.06.004

Cited by 28 publications

(21 citation statements)

References 25 publications

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“…Thus, the quasi‐static lap shear strength of the latter was improved. Furthermore, CMT has also been applied to manufacture composite‐composite joints with a through‐the‐thickness metallic reinforcement in AISI 304, 316 L, and Ti‐6Al‐4 V as well as being introduced as a new technology for the reinforcement of fiber‐metal laminates of GFRP (epoxy matrix) and stainless steel AISI 430 .…”

Section: Mechanical Performance Of Da Of Metal–composite Hybrid Jointsmentioning

confidence: 99%

A review on direct assembly of through‐the‐thickness reinforced metal–polymer composite hybrid structures

Feistauer

Santos

Amancio‐Filho

2018

Polymer Engineering & Sci

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Constant efforts to reduce the structural weight of transportation systems as a solution to control emission levels are currently shaping the way modern cars and airplanes are designed and manufactured. Increased attention has been given to innovative metal–composites multi‐material concepts for the production of lightweight structures. However, the nature of these very dissimilar materials makes their joining a rather complicated task. Recently several technologies have been proposed to overcome process limitation and increase the load transfer between metal and composite in hybrid structures. One of the promising solutions is a new concept known as direct assembling with through‐the‐thickness reinforcements. In this concept, the composite material of a hybrid joint is directly assembled upon a surface‐structured metallic part. Features structured on the metallic part, by a manufacturing phase, act as a through‐the‐thickness reinforcement improving the out‐of‐plane strength and load transfer capabilities of such joints. The current status and state‐of‐art direct assembling technologies are reviewed in this article. Examples of reviewed metal structuring techniques include micromachining, stamping, Surfi‐Sculpt, additive manufacturing, cold metal transfer, and metal injection molding structuring. Direct assembling techniques addressed in this article are vacuum‐assisted resin infusion, resin transfer molding, prepreg/autoclave assembly, and ultrasonic joining. POLYM. ENG. SCI., 59:661–674, 2019. © 2018 The Authors. Polymer Engineering & Science published by Wiley Periodicals, Inc. on behalf of Society of Plastics Engineers.

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Section: Mechanical Performance Of Da Of Metal–composite Hybrid Jointsmentioning

confidence: 99%

A review on direct assembly of through‐the‐thickness reinforced metal–polymer composite hybrid structures

Feistauer

Santos

Amancio‐Filho

2018

Polymer Engineering & Sci

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“…The most commonly studied configuration is a T-joint subjected to pull-off loading, [58][59][60][61][62][63][64][65][66] although in recent years there has also been a marked increase in studies of stepped-lap and singlelap HBP joints subjected to uniaxial tension. 13,[67][68][69][70][71][72][73][74] Contrary to HBB joints -which generally use only 1-3 rows of bolts -HBP joints use a substantial number of small diameter pins. The pin diameter is typically less than 1 mm, versus 5-10 mm for an HBB bolt.…”

Section: Hybrid Bonded-pinned Joints Design and Manufacture Of Hbp Jointsmentioning

confidence: 99%

“…This is simply the ratio of total pin cross-sectional area to the overall bonded area in the adhesive plane. Pins can consist of any suitable material, although the two predominant materials are metal (most often steel 63,69,71 and titanium 13,67 ) and carbon fiber. 59,75,76 The choice of the pin material/geometry is intimately related to the materials being joined and the manufacturing method.…”

Section: Hybrid Bonded-pinned Joints Design and Manufacture Of Hbp Jointsmentioning

confidence: 99%

Hybrid bonded-fastened joints and their application in composite structures: A general review

Bodjona

Lessard

2016

Journal of Reinforced Plastics and Composites

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Hybrid bonding-fastening is an alternative joining technique that consists of simultaneous adhesive bonding and mechanical fastening of the adherends. In this paper, pertinent scientific publications are selected and reviewed in an attempt to synthesize the current knowledge on various aspects of this technique. A particular focus is maintained on its application in composite structures. Two major bonding-fastening methods, namely bonding-bolting and bonding-pinning, are identified and contrasted, and the characteristics of each are discussed. Existing gaps in the literature are identified. Finally, perspectives for future research are assessed.

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“…In continuous fatigue, the interaction between the cyclic creep and fatigue damage has mainly been studied by monitoring the evolution of the fatigue hysteresis loops. In this case, the shift of the fatigue hysteresis loops represents the cyclic creep effects and the degradation of fatigue stiffness, which is the slope of the hysteresis loops, represents the damage effect [26,32,33,34]. The interaction degree between the cyclic creep and fatigue damage and dominance of one over the other also depends strongly on the material type.…”

Section: Introductionmentioning

confidence: 99%

Stress ratio effect on tension-tension fatigue behavior of angle-ply GFRP laminates

Movahedi-Rad

Keller

Vassilopoulos

2019

International Journal of Fatigue

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The effect of the stress ratio (R=σ min /σ max) on the fatigue behavior of (±45) 2S angle-ply glass/epoxy composite laminates was investigated by comparing their mechanical, thermal, and optical properties under the stress ratio of 0.5 with previous fatigue results obtained under the stress ratio of 0.1. When the stress ratio was increased from 0.1 to 0.5, the fatigue life was enhanced at the same σ max and the slope of S-N curve decreased, exhibiting more scattered responses. In addition, as the stress ratio increased, the fatigue damage was distributed more uniformly with a lower self-generated temperature at the same σ max. At R=0.5, fiber realignment, due to cyclic creep, increased the fatigue stiffness, thus compensating the decreasing effect of fatigue damage. At high stress levels, the stiffening effect dominated the stiffness evolution, resulting in greater fatigue stiffness with an increasing number of fatigue cycles; however, at low stress levels the degrading effect due to fatigue damage was prevalent. The stiffening effect led to smaller hysteresis loop areas at the beginning of the fatigue experiments, which subsequently stabilized for the greater part of the specimen fatigue life, followed by a slight increase before failure. At R=0.1, the fatigue stiffness decreased further and the hysteresis loop area became larger at all stress levels at the same σ max since the stiffening effect was less and fatigue damage more severe.

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Fatigue behaviour of composite–composite joints reinforced with cold metal transfer welded pins

Cited by 28 publications

References 25 publications

A review on direct assembly of through‐the‐thickness reinforced metal–polymer composite hybrid structures

A review on direct assembly of through‐the‐thickness reinforced metal–polymer composite hybrid structures

Hybrid bonded-fastened joints and their application in composite structures: A general review

Stress ratio effect on tension-tension fatigue behavior of angle-ply GFRP laminates

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