Experimental characterization, analytical and numerical investigations of metal/polymer/metal sandwich composites – Part 2: Free bending

Harhash, Mohamed; Gilbert, Rose Rogin; Hartmann, Stefan; Palkowski, Heinz

doi:10.1016/j.compstruct.2019.111421

Cited by 26 publications

(13 citation statements)

References 30 publications

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“…Atrian and Panahi [6] investigated and also validated the effect of blank holder force on aluminum/polypropylene/steel sandwiches during deep drawing processes. In Harhash et al [32,33], the core layers are made of a PP/PE polymer compound (polypropylene-polyethylene) with steel as face sheets. In their investigations the sandwiches are subjected to bending and deep drawing processes.…”

Section: Introductionmentioning

confidence: 99%

Parameter estimation and its influence on layered metal–composite–metal plates simulation

et al. 2022

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Laminates made of metal—glass fiber-reinforced polymers—metal layers require material parameters for each constitutive model of the constituents. First, although parameter identification for metallic materials has been frequently discussed, the stepwise identification of material parameters in terms of uncertainties of previously determined parameters is investigated by the concept of error propagation. Second, the calibration of a model of orthotropy describing the large deformation behavior of the glass fiber-reinforced kernel layer is a challenging process, especially against the background of a reliable determination of the parameters. The main problem is related to the lack of available experiments. This issue is embedded in the concept of local identifiability. Thus, the article provides experiments to determine the parameters of both the steel as well as the glass fiber-reinforced polymers. Particularly for the latter issue, $$\mu $$ μ -CT data is chosen to provide a representative volume element, where all deformation modes can be investigated. In this sense, a concept to determine all material parameters in a locally unique and reliable manner is studied. A linear error propagation concept provides the uncertainty of the resulting material parameters of the whole parameter set for the homogenized material. The entire parameter identification process is discussed thoroughly, and validation examples such as bending and deep drawing in metal forming processes, are provided to estimate the prediction accuracy. In this respect, the uncertainties found by parameter identification are applied to the prediction of finite element simulations of layered metal–composite–metal forming processes and error propagation is used to estimate the uncertainties of the simulations. In this contribution, we restrict ourselves to experiments at room temperature.

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Section: Introductionmentioning

confidence: 99%

Parameter estimation and its influence on layered metal–composite–metal plates simulation

et al. 2022

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“…Sandwich panels are promising composite materials, which combine advantages of the used mono-materials. For this reason, these possess improved properties that each monomaterial alone would not deliver, such as low density, high bending resistance, energy absorption, high load carrying capacity in combination with a low specific weight [1][2][3]. Separately, metal-polymer-metal multilayer composite systems (MPM) can compete with conventional sheet materials in the construction, naval, automotive and aerospace industries [4,5].…”

Section: Introductionmentioning

confidence: 99%

Laser Welding of Metal-Polymer-Metal Sandwich Panels

Murzin

Palkowski

Melnikov

et al. 2022

Metals

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In the production of metal-polymer multilayer composite parts, e.g., for automotive applications, the possibilities of thermal joining are limited due to the instability of the polymer core at elevated temperatures. Accordingly, such materials require a special approach to their welding. The three-layered metal-polymer-metal samples were made of DPK 30/50+ZE dual-phase steel as cover sheets that were electrolytic galvanized, and a polypropylene-polyethylene foil as core material, with thicknesses of 0.48/0.3/0.48 mm. The samples were welded on both sides using a 1.06 µm Nd:YAG ROFIN StarWeld Manual Performance laser. Significant improvements of the welding conditions are achieved by machining the edges of materials to be welded. The parameters of laser welding were chosen in such a way that the polymer structure remained almost unchanged. The weld thickness was about 40% of the thickness of each steel layer. It was established that within the selected laser processing parameters the melting occurred uniformly, while the polymer layer practically did not change its structure. Therefore, it can be stated that two-sided joint welding of metal-polymer-metal composite sandwich panels, without significant degradation of the polymer core layer, is feasible.

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“…Monolithic panels and Metal/polymer/metal sandwich made of 100% recyclable aluminium composite were studied without losing quality and with high durability [16]. Various investigations [17,18] supported their placement. The project management did not want to place a metallic material as it was not feasible to generate the entire parapet in one piece.…”

Section: Introductionmentioning

confidence: 99%

An Empirical Investigation of Software Customization and Its Impact on the Quality of Software as a Service: Perspectives from Software Professionals

Ali¹,

Sultan²,

Ghani³

et al. 2021

Applied Sciences

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The synthetic material developed by Dupont in 1963 for solid surfaces has been used since its origin for numerous applications. One of the most popular ones in the last decade is as a finishing layer on façades. The first references that contemplated this use on the outside were the Seeko’o hotel in Bordeaux executed in 2007 and the refurbishment of the 7700 m2 shell of the Hôtel Ivoire congress centre in Abidjan (Ivory Coast) in 2009. In Spain, the first example of the installation of this material is the rehabilitation of the main building of the La Rotonda de la Playa de San Juan urbanisation in Alicante, designed in 1965 by the architect Juan Guardiola Gaya and rehabilitated in 2010 by Miguel Salvador Landmann. Ten years later, our research is focused on the study of the colour ageing of the acrylic resin and natural mineral sheets on each of its façades, with different orientations and exposure to sea and wind. To this end, it has been studied the solar radiation of the surfaces, the wind exposure of their façades and tests with a tele-spectroradiometer has been carried out. The study makes it possible to quantify the differences in colour in all of them and to state that the combination of wind and radiation is the main atmospheric agent causing the degradation.

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Experimental characterization, analytical and numerical investigations of metal/polymer/metal sandwich composites – Part 2: Free bending

Cited by 26 publications

References 30 publications

Parameter estimation and its influence on layered metal–composite–metal plates simulation

Parameter estimation and its influence on layered metal–composite–metal plates simulation

Laser Welding of Metal-Polymer-Metal Sandwich Panels

An Empirical Investigation of Software Customization and Its Impact on the Quality of Software as a Service: Perspectives from Software Professionals

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