By A. S. Paipetis, V. Kostopoulos (auth.), A. Paipetis, V. Kostopoulos (eds.)
The good documented bring up within the use of excessive functionality composites as structural fabrics in aerospace elements is continually elevating the calls for by way of dynamic functionality, structural integrity, trustworthy lifestyles tracking platforms and adaptive actuating talents. present applied sciences tackle the above matters individually; fabric estate tailoring and customized layout practices objective to the enhancement of dynamic and harm tolerance features, while existence tracking and actuation is played with embedded sensors which may be hazardous to the structural integrity of the part.
This book explores the original houses of carbon nanotubes (CNT) as an additive within the matrix of Fibre strengthened Plastics (FRP), for generating structural composites with stronger mechanical functionality in addition to sensing/actuating features. The profitable mixture of the CNT houses and present sensing actuating applied sciences results in the conclusion of a multifunctional FRP constitution. the present quantity provides the state-of-the-art examine during this box.
The contributions hide all of the features of the radical composite platforms, i.e. modeling from nano to macro scale, enhancement of structural potency, dispersion and production, vital healthiness tracking skills, Raman tracking, in addition to the functions that ordered carbon nanotube arrays supply by way of sensing and/or actuating in aerospace composites.
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Additional info for Carbon Nanotube Enhanced Aerospace Composite Materials: A New Generation of Multifunctional Hybrid Structural Composites
Filled matrices used in past works (Indada et al. 2005; Okuhara et al. 2000, 2001) in order to utilize the electrically conductive network of nanotubes formed in the polymer matrix surrounding the fibres. Kostopoulos et al. (2009a) proposed the use of carbon nanotubes (CNTs) as additives in the epoxy matrix of carbon fibre reinforced laminates (CFRPs) aiming to enhance the real-time damage monitoring via the electrical resistance change (ERC) method. In parallel, new very promising nano-engineered structures were developed providing new tools for constructing self-sensing composite materials.
9 mm) thick. 1 mm diameter) with parallel flat edges. These specimens (Fig. 2), provided a compromise in which images of the specimen surface could be taken easily with minimal interference of reflections of the free end of the Hopkinson bar. Initially, quasi-static compression tests were performed to identify the stress level at which failure of the composite occurred as well as the resistance behavior associated with compressive failure of a 45 off-axis composite specimen. Following up, split Hopkinson pressure bar experiments were performed on the same geometry 45 specimens (Fig.
Kostopoulos directed to their sensing behavior, which relates to their electrical behavior. Lately, research on self-sensing was encouraged and stimulated by the introduction of nanotechnology into the field of composite materials. Nano-scale fillers such as carbon nanotubes (CNTs) have been placed recently in the epicenter of composite research. Taking into consideration their high aspect ratio, large surface area and excellent electrical properties, they offer benefits of an additional reinforcing phase acting at the nano-scale.