Controllable parameters as the essential components in the analysis, manufacturing and design of 3D woven composites

The comprehensive design feasibility for woven composites has been established by identifying the missing component in tool these materials, so-called controllable parameters. These are parameters that involved, directly or indirectly, manufacturing of preforms, and they include tow densities, number size filaments a intra-tow fibre volume fractions. Controllable have related through simple procedure to conventional geometric composites, which eliminates need their costly, inefficient, often unreliable measurements. provide sufficient representation geometry terms both modelling manufacture, thus offering common terminology composite designers manufacturers. This also allows naturally involve practical considerations restrictions material exercises. With being incorporated framework, direct analogy can be drawn classical lamination theory-based laminates. wide applicability demonstrated via series systematic characterisation exercises carried out with sufficiently different internal architectures constituents, showed good predictive capability models involved.