An experimental investigation on low velocity impact response of nanoclay-reinforced fiber metal laminates

Document Type : Research Article


1 Young Researchers and Elite Club, West Tehran Branch, Islamic Azad University, Tehran, Iran

2 Azad Islamic University South Tehran Branch

3 Azad Islamic university South Tehran Branch



In this experimental study, the effect of nanoclay addition into fiber metal laminates (FMLs) on low velocity impact response is investigated. The reinforced FMLs considering 0, 1, 3 and 5 weight percentages of nanoclay were manufactured by hand lay-up technique. The specimens were then subjected to low velocity impact using an instrumented drop-weight test setup at three different energy levels, in the range of the tolerable impact energy up to fracture according to quasi-static test achievements. Impact characteristics of the FMLs were compared in terms of force-time and force-displacement responses as well as the final energy absorption of the samples in addition to visual inspection of the damage area. The results showed that the addition of 1 to 3 wt. % nanoclay into the FMLs can improve their impact characteristics. Moreover, a noticeable reduction in physical damage was also observed in nano-FMLs as compared to nano-free ones. On the other hand, it was found that extra addition of nanoclay into the FMLs can decrease their impact characteristics and make them be more brittle specimen than the nano-free samples.


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