Modelling and simulation of 3D orthogonal and interlock fabrics for structural composite applications

Abstract

Modelling and simulation of 3D orthogonal and interlock fabrics have been studied for tensile applications. This involves building a geometrical model by calculating the proper dimensions of the tows, conversion of the geometrical model into finite element mesh, and subsequently, prediction of tensile properties in the direction of load bearing tows by simulation using meso-finite element modelling. For the simulation, elliptical tow cross-section with aspect ratio 11 has been preferred as the best geometrical modelling parameter. Model results obtained from finite element analysis are then compared with experimental values to authenticate the modelling methodologies. The simulated results of maximum stress at break are found to be higher than the experimental results for both the corresponding orthogonal and interlock structures.