A Study on Modelling and Simulation of Dynamic Behavior of Fiber Metal Laminates (FMLs) under Low-Velocity Impact

Ghasemi, Faramarz Ashenai; Payeganeh, Gh.; Malekzadehfard, Keramat

doi:10.2316/p.2010.702-004

Cited by 1 publication

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“…Ashenai Ghasemi et al 12 studied about the impact performance of Aluminium/Steel and Glass/Carbon fiber epoxy hybrid laminates under low velocity impact. They found that factors such as layer sequence of metal layers, material type of metal layers and composite medium, the E 11 /E 22 ratio of composite medium were very significant in affecting the dynamic behavior of the impacted laminates.…”

Section: Introductionmentioning

confidence: 99%

Impact properties of aluminium - glass fiber reinforced plastics sandwich panels

Periasamy¹,

Manickam

Hariharasubramanian³

2012

Mat. Res.

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Aluminium -glass fiber reinforced plastics (GFRP) sandwich panels are hybrid laminates consisting of GFRP bonded with thin aluminum sheets on either side. Such sandwich materials are increasingly used in airplane and automobile structures. Laminates with varying aluminium thickness fractions, fiber volume fractions and orientation in the layers of GFRP were fabricated by hand lay up method and evaluated for their impact performance by conducting drop weight tests under low velocity impacts. The impact energy required for initiating a crack in the outer aluminium layer as well as the energy required for perforation was recorded. The impact load-time history was also recorded to understand the failure behavior. The damage depth and the damage area were measured to evaluate the impact resistance. Optical photography and scanning electron micrographs were taken to visualize the crack and the damage zone. The bidirectional cross-ply hybrid laminate (CPHL) has been found to exhibit better impact performance and damage resistance than the unidirectional hybrid laminate (UDHL). Increase in aluminium thickness fraction (Al tf ) and fiber volume fraction (V f ) resulted in an increase in the impact energy required for cracking and perforation. On an overall basis, the sandwich panels exhibited better impact performance than the monolithic aluminium.

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Section: Introductionmentioning

confidence: 99%