Wyniki 1-1 spośród 1 dla zapytania: authorDesc:"Witold Rządkowski"

Comparative analysis of riveted and adhesive joints of GFRP laminates in the aspect of aerostructure applications DOI:10.15199/28.2018.2.4

  1. INTRODUCTION There are several types of joints that are currently applied in aerostructures. One type is the adhesive joint, where the bonding medium is an adhesive of special properties. Other widely applied joints include mechanical joints, predominantly riveted [1÷3] or bolted joints [4]. Riveted joints have been extensively used in the aircraft industry since the emergence of first metal structures [5]. A modern aircraft will be assembled with anywhere from several thousand to several million rivets (e.g. Lockheed C-5 Galaxy), which are primarily used to join thin-walled elements of lift-generating aerostructures, whose thickness may range between several tenths to several millimeters [6]. Despite the immense evolution of materials used in aerostructures, commenced by the introduction of steel, through light alloys to structural composites (laminates [7]), riveted joints still appear to remain the most widespread joining technique [8]. The other major joining alternative present in aircraft structures is adhesive joining. In recent years the method has been attracting considerable attention [9÷12], particularly in the aircraft industry. What has been long known about adhesive joining is that proper surface treatment is critical to preparing the surface of adherends for joining [9]. Moreover, adhesive joint formation also depends on the suitability of a selected adhesive composition for purpose requirements. Adhesive joining technology is undergoing a constant and rapid development as a result of advances in the chemistry of adhesives. Recent trends show that formerly metal elements are often replaced with composite materials, which are lighter and yet offer equal or even higher strength. Not only do modern composite materials produce individual components of aircrafts, but the whole flying objects as well (e.g. passenger planes) where the total mass of structural composite elements exceeds 50% [12, 13]. Despite the num[...]

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