Formability and fractography of AA5754/polyethylene/AA5754 sandwich composites

Kazemi, Farshad; Hashemi, Ramin; Niknam, Seyed Ali

doi:10.1080/15397734.2020.1747488

Cited by 10 publications

(4 citation statements)

References 34 publications

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“…For instance, FLC level of Al/PE/Al sandwich material is higher than that of its monolithic Al sheet at RT [33]. Moreover, a slight increasing tendency of drawing depth was found to increase the core layer thickness [34]. In comparison, the core thickness has no significant influence on the FLC levels for sandwich materials based on steel covers and polymer core, e.g., steel/PP-PE/steel.…”

Section: Introductionmentioning

confidence: 89%

Stretching and Forming Limit Curve of Steel–Glass Fibre Reinforced and Non-Reinforced Polyamide–Steel Sandwich Materials

et al. 2023

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This paper focuses on investigating the forming behaviour of sandwich materials composed of steel sheets and glass fibre-reinforced polyamide 6 (GF-PA6), i.e., thermoplastic-based fibre metal laminates (FML). Stretching and forming limit curve (FLC) determination of FML with different cover/core layer thickness ratios at various forming temperatures, i.e., at room temperature (RT), 200 and 235 °C, are the main approaches for characterizing their formability. In addition, the formability of mono-materials and non-reinforced sandwich materials is investigated as a reference. For a successful test and reliable results, several technical issues are considered, such as the suitable lubrication configuration and digital image correlation at elevated forming temperatures. The results revealed that the formability of non-reinforced sandwich materials with different core layer thicknesses exhibited compared formability to their monolithic steel sheet and no remarkable improvement in their formability with increasing the temperature up to 200 °C. Conversely, the formability of FML shows significant improvement (approx. 300%) with increasing temperature with a forming depth of about 33 mm at 235 °C compared to only 12 mm at RT.

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Section: Introductionmentioning

confidence: 89%

Stretching and Forming Limit Curve of Steel–Glass Fibre Reinforced and Non-Reinforced Polyamide–Steel Sandwich Materials

et al. 2023

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“…There have been some researches to investigate the delamination of metal-polymer sandwich composites. Kazemi et al performed forming test of steel–polyethylene sandwich composites and observed noticeable delamination based on the SEM investigation [ 16 ]. However, since the SEM image was observed after all fractures had occurred, the forming limit at the moment of delamination could not be observed.…”

Section: Introductionmentioning

confidence: 99%

Detection of delamination of steel–polymer sandwich composites using acoustic emission and development of a forming limit diagram considering delamination

Yang¹,

2023

Heliyon

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“…Since the composite with reinforcement powder has higher young's modulus, they had lower spring-back values. Kazemi et al [30] did an experimentally and numerically investigation on the forming of the AA5754/polyethylene/AA5754 sandwich composites. The experimental and numerical results were validated with each other and after that, the effect of variation in thickness of the core layer and skin layers was examined numerically.…”

Section: Introductionmentioning

confidence: 99%

Experimental study of the effect of temperature and velocity in channel forming of polyvinyl chloride composite reinforced by 3D-fiberglass with an aluminum middle layer

et al. 2022

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In this paper, the stamp forming process of a U-shaped cross-section channel with sharp corners of composite laminates including aluminum sheet and polyvinyl chloride (PVC) reinforced with 3D-fiberglass was investigated. The laminates were produced by manual layup and arrangement of fibers with different angles of [0°/90°] and [± 45°] degrees using hot press. The process of forming composite samples was carried out at temperatures of 25, 80, 120, 160°C and different velocities of punch. The effect of parameters including layup configuration, temperature, and forming speed on the spring-back of the formed laminates and the required forming force were evaluated. The results showed that as the forming temperature increased, the forming force decreased sharply. The lowest forming force was obtained for the laminate with [± 45°, Al, ± 45°] layout at 160°C temperature which was equal to 0.7KN. Also, with the increase in temperature, the spring-back angle has been reduced, the lowest of which is obtained with the laminate with [0°/90°] 3 layout equal to 8 degrees. Finally, it was concluded that increasing the speed of the forming process results in a decrease in the spring-back angle and this effect is more pronounced at higher temperatures. Graphical abstract

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Formability and fractography of AA5754/polyethylene/AA5754 sandwich composites

Cited by 10 publications

References 34 publications

Stretching and Forming Limit Curve of Steel–Glass Fibre Reinforced and Non-Reinforced Polyamide–Steel Sandwich Materials

Stretching and Forming Limit Curve of Steel–Glass Fibre Reinforced and Non-Reinforced Polyamide–Steel Sandwich Materials

Detection of delamination of steel–polymer sandwich composites using acoustic emission and development of a forming limit diagram considering delamination

Experimental study of the effect of temperature and velocity in channel forming of polyvinyl chloride composite reinforced by 3D-fiberglass with an aluminum middle layer

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