Flow conditions during compression moulding of Sheet Moulding Compounds (SMCs) govern the microstructure and resulting mechanical properties composite parts. Low-density high-fibre content SMCs were subjected to simple compression, œdometric through-thickness shear loadings, using dedicated rheometers. Simple experiments revealed compaction behaviour both types SMCs. During experiments, low-den...

Continuous compression moulding (CCM) is an efficient process for manufacturing endless fibre-reinforced thermoplastic composites, so called organic sheets. The semi-finished products are fully imp...

Different cyclic loading modes have been used in in vitro fatigue studies of PMMA bone cement. It is unclear which loading mode is most appropriate from the perspective of the in vivo loading experienced by the cement in a cemented arthroplasty. Also, in different in vitro fatigue studies, different test specimen configurations have been used. The present work considers the influence of test sp...

Introduction Computational fluid dynamics (CFD) has been used to simulate the flow during vacuum infusion [12], sheet moulding compound (SMC) [3-4], the auto-clave process [5] and twin-screw extrusion. Three-dimensional geometries were studied and porous media and multiphase flows were treated with a homogenous approach. The advantages and drawbacks of such a methodology are here discussed base...

Wet Compression Moulding (WCM) provides large-scale production potential for continuously fibre-reinforced structural components due to simultaneous infiltration and draping during moulding. Due thickness-dominated of the laminate, comparatively low cavity pressures are sufficient - a considerable economical advantage. Similar other Liquid (LCM) processes, forming strongly interact process. How...

A Halbach cylinder, fabricated from pre-magnetized sintered NdFeB magnet segments, is proposed for the powder aligning system during the compression or injection moulding of anisotropic bonded Halbach oriented NdFeB ring magnets. The influence of leading design parameters of the powder aligning system, viz. the number of magnet segments per pole, their axial length and radial thickness, and the...

Abstract Using the most environmentally sustainable agro-waste fibers as reinforcement has opened up a new direction for polymer composite research. Research recommended that altering of fibre surface by both chemical and physical means, increases performance characteristic natural fibre/polymer matrix. In this study, high-frequency microwave irradiation at frequency 2.45 GHZ 550W power was use...

OBJECTIVE To assess the extent and severity of respiratory insufficiency associated with severe rheumatoid atlantoaxial dislocation and its relation to compression of the neuraxis. METHODS Twelve patients with severe atlantoaxial dislocation due to rheumatoid disease were studied. Detailed clinical, CT myelography and respiratory assessment including nocturnal oximetry, were performed on all ...