For mass production of structural composites, use of different textile patterns, custom preforming, room temperature cure high performance polymers and simplistic manufacturing approaches are desired. Woven fabrics are widely used for infusion processes owing to their high permeability but their localised mechanical performance is affected due to inherent associated crimps. The current investig...

This study aims to propose a novel method, vacuum infusion process, measure the longitudinal permeability of wood. The method uses bag sealed over fibrous material, with inlet and outlet. It can be performed on top any flat surface, its process is relatively swift. Six different woods (Pinus elliottii, Araucaria angustifolia, Ochroma pyramidale, Cedrela fissilis, Tectona grandis, Eucalyptus gra...

Freshness is one of the main quality attributes for processing, marketing and consumption of fish. Fish is increasingly becoming the favored food of people in many countries as it is rich in proteins. However, the disadvantage associated with broader consumption of fish products is their comparatively short shelf-life. Therefore, effective methods for extending shelf-life and improving qual...

Abstract A hybrid composite reinforced by aramid, glass and carbon fibers processed with integrated vacuum infusion is studied in this paper. Reasons why the suffers from warpage after post-curing are analyzed. Such deformation restrained adjusting thickness ratio of fibers. Results indicate that a constant areal density, minimum 0.28 when surface layer to back 1.46.

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...

RIFT (Resin Infusion under Flexible Tool) process modelling requires accurate material data like resin viscosity, reinforcement compressibility and reinforcement permeability. During the mould closing, the compression phase and the resin flow are important stages that strongly influence the quality of the obtained parts. In RIFT process the upper mould is a formable vacuum bag: its flexibility ...