Laminated Carbon Fiber Reinforced Polymer (CFRP) composites are very effective in weight saving in aeronautical structural components. For these laminated CFRP structures, it is, however, difficult to detect damage such as delamination, matrix cracks, and local fiber breakages caused by low velocity impact loading In the previous study in 2009, Time Domain Reflectometry (TDR) method was applied...

Abstract This study considers the influence of different irradiation scenarios on thermal degradation carbon fibre-reinforced polymers (CFRP). Real threats are simulated, such as fires with long-lasting low heat fluxes and nuclear flashes short-lasting high fluxes. For this purpose, coated uncoated quasi-isotropic samples commercially available CFRP HexPly ® 8552/IM7 thermally irradiated from o...

Carbon fiber reinforced plastics (CFRPs) gained high interest in industrial applications because of their excellent strength and low specific weight. The stacking sequence the unidirectional plies forming a CFRP laminate, thicknesses, primarily determine mechanical performance. However, during manufacturing, defects, e.g., pores residual stresses, are induced, both affecting properties. objecti...

The promise of enhanced physical properties and multifunctionality has led many groups to study polymer matrix composites (PMCs) reinforced with nanoscale elements, such as nanofibers, nanowires, and nanotubes. However, the application of such material in next-generation aerospace architectures is currently limited by the geometrical constraints and high energy costs of traditional manufacturin...

Because the time reversal operator of Lamb waves varies with frequency in composite structures, the reconstructed signal deviates from the input signal even in undamaged cases. The damage index captures the discrepancy between the two signals without differentiating the effects of time reversal operator from those of damage. This results in the risk of false alarm. To solve this issue, a modifi...

Low-speed wind energy conversion systems generally use Carbon Fiber Reinforced Plastic (CFRP) and Glass Fiber Reinforced Plastic (GFRP) as materials for rotor blade because these materials are light weight and hard but expensive. Layer Laminated Bamboo Composite (LLBC) is a bio-composite with bamboo base material which is abundant material and has a relatively lower price. This study investigat...

Three different laminated composites are used in this study: carbon fiber, woven glass and glass-fiber-reinforced epoxy. The composite laminate structures were fabricated using the hand lay-up technique at room temperature. laminates reinforced with epoxy resin, fibers (CFRP), (GFRP-W), random-orientation (GFRP-R) to obtain eight layers. wear test was performed a pin-on-disc tribometer five loa...

A challenge in numerical simulation of crashworthiness study is to be able to predict the crush damage modes, their evolution during crushing and the energy absorption in any composite structure from elementary material characterisation data. Therefore, it is important to know the behavior of one ply subjected to crushing load, and especially to determine the mean crushing stress that could be ...

Abstract Hybrid adhesive joints of metal and composite parts are increasingly common features lightweight structures. Efficient design these requires computational methods for estimating the fatigue life as well being joined – i. e. adherends. The paper focuses on prediction carbon fiber reinforced polymer (CFRP) adherends in hybrid joints. After a brief description material considered, two mod...