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Quasistatic tensile and flexural behaviors of fiber metal laminates after subjecting to uniaxial tensile impact loading
Faculty
Engineering
Year:
2025
Type of Publication:
ZU Hosted
Pages:
16051
Authors:
Hossameldien Mohamed Salam Helmy
Staff Zu Site
Abstract In Staff Site
Journal:
scientific reports Springer Nature
Volume:
15
Keywords :
Quasistatic tensile , flexural behaviors , fiber metal
Abstract:
This study represents a novel contribution regarding the behavior of fiber-metal laminates (FMLs) under tensile impact loading. The experimental program included axial tensile-impact tests and quasi-static tensile and flexural tests after impact. The FMLs’ core consisted of an epoxy matrix reinforced with long glass fibers, and their skins had 1050 aluminum plates. Several variables were investigated, including the lay-up methods and the insertion of the [90°] layers within [Al/0°/Al] and [Al/0°/0°/Al] FML specimens. The results showed that the residual tensile load of [Al/0°/90°/0°/Al] sandwich specimens’ lay-up method was 6.65 kN, from the original ultimate load of 17.69 kN. For bending after impact, the residual load was 0.79 kN, from the original one of 1.46 kN. Although inserting the [90°] layers provided low tensile strength, it effectively blunted the propagating crack in the load’s direction under either the quasi-static tensile or the tensile-impact tests. For progressive damage, the [0°] layer showed fiber breakage and fiber-kinking, and the [90°] layer exhibited critical matrix cracking. Meanwhile, the aluminum plates exhibited a transverse crack during the delamination between the composite core and aluminum plates. During the tensile-impact test, two divisions of delamination were observed: partial delamination aside from [0°] and severe delamination with [90°].
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Hossameldien Mohamed Salam Helmy, "An Assessment of ASTM E1922 for Measuring the Translaminar Fracture Toughness of Laminated Polymer Matrix Composite Materials", MDPI, 2021
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Department Related Publications
Ahmed Mohamed Hassan Ali Youssief, "Densification behavior and mechanical properties of niobium-oxide-doped alumina ceramics", Goller Verlag, 2013
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Ahmed Mohamed Hassan Ali Youssief, "Toughening and strengthening of Nb2O5 doped zirconia/alumina (ZTA) composites", Elsevier, 2015
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Selem Saleh Elsayed Ahmed Dawod, "Contribution of retardation mechanisms on the behaviour of fatigue crack growth in steel structures", 1st International Conference in Civil Engineering, Helwan University, Egypt, pp.172-182., 1998
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Selem Saleh Elsayed Ahmed Dawod, "Effect of coarse aggregate type on the mechanical behavior of high strength concrete", 5th International Conference in Building materials and structural Engineering, Academy of Graduate Studies, Tripoli, Libya, pp.140-151. 2010., 2010
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Selem Saleh Elsayed Ahmed Dawod, "FCG Behavior in Parallel Direction of Welded Austenitic Stainless Steel Plate", AEIC 12, 2012, 2012
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