Abstract This paper investigates the effect of moisture content upon degradation behaviour composite materials. A coupled phase field framework considering diffusion, hygroscopic expansion, and fracture is developed. multi-physics used to explore damage evolution materials, spanning micro-, meso- macro-scales. The micro-scale unit-cell model shows how mismatch between expansion fibre matrix lea...

We present a novel micromechanics-based phase field approach to model crack initiation and propagation in carbon nanotube (CNT) based composites. The constitutive mechanical fracture properties of the nanocomposites are first estimated by mean-field homogenisation approach. Inhomogeneous dispersion CNTs is accounted for means equivalent inclusions representing agglomerated CNTs. Detailed parame...