Physical and mechanical properties of a reversible adhesive for automotive applications

Ciardiello, Raffaele; Belingardi, Giovanni; Martorana, B.; Brunella, Valentina Giovanna

doi:10.1016/j.ijadhadh.2018.12.005

Cited by 37 publications

(48 citation statements)

References 20 publications

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“…15 Sensitivity analysis shows that a more rigid adhesive induces higher peel and shear stresses, while a larger adhesive zone decreases it. 16 Based on an equivalent lap-joint configuration -with an adhesive thickness of 0.5 mm -the adhesive joint between the aluminum tube and the CFRP blade has to face a peel stress about 10 MPa and a shear stress of 3 MPa (Figure 13). These values will increase with the adhesive thickness decrease.…”

Section: Adhesive Bonding Designmentioning

confidence: 99%

Design and analysis of automotive lightweight materials suspension based on finite element analysis

Ciampaglia

Santini²,

Belingardi

2020

Proceedings of the Institution of Mechanical Engineers, Part C:

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In this paper, an integrated method for the design of suspension components with lightweight materials is proposed. Starting from the well-established design flow for chassis components, the paper analyse the manufacturing and design aspect which are mutual dependent in composite structures, providing technical guidance. The proposed design methodology is applied to an innovative suspension archetype patented by Magneti Marelli, F.L.E.C.S. (Flexible Link Elevated Compliance Suspension). First, an analysis of available lightweight material is carried out to define which one best fits the design requirements in terms of density, stiffness, cost and manufacturability. Second, structural simulations, based on finite element analysis, are performed to investigate the influence of the thickness and material on the elasto-kinematic performance of the suspension. According to the stress distribution, an optimization of the shape and the stacking sequence of the component is performed. The results show that 8.5 mm carbon fibre reinforced epoxy is the best solution for the blades, and 5 mm aluminium alloy for the reinforcement tube wall thickness. Third, with respect to the final design, an adhesive interface is analysed and designed, using the Goland-Reissner model.

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Section: Adhesive Bonding Designmentioning

confidence: 99%

Design and analysis of automotive lightweight materials suspension based on finite element analysis

Ciampaglia

Santini²,

Belingardi

2020

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…The disadvantages of adhesive joints include mainly: limited resistance to increased temperature, the need of using additional operations related to, for example, surface preparation, low joint control possibilities and proclivity to delamination [6,14,23,25,26].…”

Section: Quality Of Samples In Adhesive Joint Testingmentioning

confidence: 99%

“…In the aviation and aerospace industries, adhesive bonding is a very desirable method due to the use of ultra-lightweight structures, which allows for a significant reduction in the manufacturing and operating costs. Moreover, adhesive bonding is an alternative to the widely used mechanical joints [6,13,17,21,24].…”

Section: Quality Of Samples In Adhesive Joint Testingmentioning

confidence: 99%

Quality of Samples in Adhesive Joint Testing

Zawada-Michałowska¹,

Kuczmaszewski²

2020

Adv. Sci. Technol. Res. J.

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The study attempts to assess the quality of various types of samples used in the adhesive joint testing. One great weakness of the scientific research conducted on this type of joints is that the published papers generally do not include an analysis of the samples quality. Although the standards define the tolerances of individual dimensions, detailed reports are in fact rarely presented. Above all, it is very important to control the thickness of the adhesive, which significantly affects the strength of adhesive bonds. It was found that obtaining high quality samples depends mainly on observing the technological discipline and using appropriate instrumentation. The paper presents the standards that should be a reliable model for the scientific research on adhesive joints.

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“…In the last years, the research on lightweight design of components has become a major topic for universities and industries. For example, in the automotive, marine, and aerospace sectors, 1–3 the reduction of the vehicle weight is of primary importance due to the stringent regulations in terms of fuel consumption and emissions, 4 which have given a significant boost to the use of lightweight materials (e.g., composite materials 5,6 ) or to the development of new design and manufacturing processes allowing to produce light components with optimized mass distribution (e.g., topology optimization and additive manufacturing). At the same time, it has been demonstrated that a further significant reduction of the weight of mechanical structures and vehicles can be achieved with structural adhesives for joining different components 6 .…”

Section: Introductionmentioning

confidence: 99%

Fatigue response up to 10⁹ cycles of a structural epoxy adhesive

Tridello

Ciardiello

Paolino

et al. 2020

Fatigue Fract Eng Mat Struct

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In the present paper, the very-high-cycle fatigue (VHCF) response of a structural adhesive used for automotive applications, Betaforce 4600G modified with microspheres, has been experimentally assessed. Ultrasonic fully reversed tension-compression tests up to 10 9 cycles have been carried out with the testing machine developed by the authors on adhesives without macroscopic defects and on adhesives with artificial defects, inserted during the butt-joint preparation. Fracture surfaces have been observed with the optical microscope and the P-S-N curves estimated. Experimental results have shown that defect location significantly affects the VHCF strength and fracture surfaces exhibit a peculiar morphology with three distinct characteristic regions. K E Y W O R D Saccelerated tests, epoxy resin, structural adhesive, ultrasonic fatigue tests, very-high-cycle fatigue (VHCF)

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Physical and mechanical properties of a reversible adhesive for automotive applications

Cited by 37 publications

References 20 publications

Design and analysis of automotive lightweight materials suspension based on finite element analysis

Design and analysis of automotive lightweight materials suspension based on finite element analysis

Quality of Samples in Adhesive Joint Testing

Fatigue response up to 10⁹ cycles of a structural epoxy adhesive

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Physical and mechanical properties of a reversible adhesive for automotive applications

Cited by 37 publications

References 20 publications

Design and analysis of automotive lightweight materials suspension based on finite element analysis

Design and analysis of automotive lightweight materials suspension based on finite element analysis

Quality of Samples in Adhesive Joint Testing

Fatigue response up to 109 cycles of a structural epoxy adhesive

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Fatigue response up to 10⁹ cycles of a structural epoxy adhesive