Abstract
Since carbon-fiber reinforced plastic (CFRP) has superior mechanical characteristics such as high strength, high rigidity, good fatigue resistance and light weight, it is extensively utilized as weight-reducing composite materials for airplanes, automobiles and other manufactures. For expanding in its applications, especially in safety transportations, CFRP still needs to strengthen the performance on the impact energy-absorption. In this study, low-speed impact tests were conducted to four types of CFRP cross-ply or quasi-static laminates without or with damping sheets. It was found that laminates with a damping sheet inserted between the central layers absorbed the most amount of energy with minimum dispersion. It was also found that viscoelasticity of the CFRP laminates would play a key role for impact resistance and energy absorption.
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