64 documents found, page 1 of 7

Effect of peel ply-induced surface roughness and wettability on the adhesive bo...

Adhesive joint failure remains a critical limitation in the manufacturing of large wind turbine blades, where reliable and reproducible surface preparation methods are required at an industrial scale. This study systematically evaluates the effect of peel ply-induced surface morphology and chemistry on the adhesion performance of glass fiber-reinforced polymer (GFRP) laminates, explicitly examining the relation...

Huizinga and "everything is play" : a thinly veiled formalist temptation : a cr...

This article critically examines the concept of formalism in game studies, with a particular focus on Johan Huizinga's notion of "play" and its relationship with "game." It argues that while Huizinga's concept has been influential in shaping the understanding of "play," it tends to prioritize formalistic and metaphysical interpretations over broader socio-cultural contexts. By conflating "play" and "game," Huiz...

Effect of salinity on the degradation of PMMA matrix composites reinforced with...

Polymer matrix composites are widely used in the marine industry due to their excellent properties. However, with increasing environmental concerns, there has been a need to develop new alternative matrices to thermosets ones, which have the potential for reuse without compromising the performance of the application. In this context, Elium 180 XO, a thermoplastic resin with a PMMA matrix, developed by Arkema, h...

Type IV Hydrogen Storage Vessels: Liner-Boss processing challenges by rotationa...

[Excerpt] Type IV hydrogen storage vessel is a compact and light weight structure used to store hydrogen gas under very high pressure, commonly at 700 bar, making it suitable for transport applications like fuel cell electric vehicles. It is typically constituted of a polymeric liner, which acts as a gas barrier, surrounded by a carbon fibre-reinforced polymer composite overwrap that provides mechanical strengt...

Development of lightweight Sandwich Composites with improved Reaction to Fire a...

ABSTRACT: Buildings with double curvature façades can be aesthetically pleasing, being capable of enchanting both architects and the general public Though, manufacturing of such façades can be a challenge in both technologic and economic terms Traditional molding technologies demand a unique mold for each panel geometry resulting in substantial costs related to raw materials and storage space, and long lead tim...

Coimbra com a alta velocidade: to be, or not to be!

Processing and structural health monitoring of a composite overwrapped pressure...

A process and Structural Health Monitoring system was implemented on a Composite Overwrapped Pressure Vessel (COPV) for hydrogen storage at 350 bar to be used in a fuel-cell system of an Unmanned Aerial Vehicle. This work reports the embedment strategy of optical fibre Bragg grating (FBG) sensors to monitor the full life cycle of the vessel, consisting of an aluminium liner and a wound carbon fibre reinforced p...

Public interest and the potential social impact of board games : the role of th...

Modern board games – precisely after what has been dubbed the “renaissance” of analog games since the publication of Catan and the consequent affirmation of the “German games” – have served for a vast reflection in the field of metagame. In this text it is considered that the effects following what is called “strategic twist” in modern board games, allow reflecting about the dynamics of the field of leisure/lud...

Comparação entre movimentos de halterofilismo e seus derivados na quantificação...

FBG sensors for process and structural health monitoring of a small type III co...

In this work, fibre Bragg grating (FBG) sensors were embedded in a 1-litre type III composite overwrapped pressure vessel (COPV) for an unmanned aerial vehicle (UAV), during its manufacturing for process and structural health monitoring (SHM). A single optical fibre having eight FBG sensors was fixed around an aluminium liner to form a grid network. The carbon fibre/epoxy composite layers were wound on top of i...