摘要: Abstract Fibre-dominated tensile failure in composites is a complex phenomenon governed by the statistical distribution of fibre strengths and micromechanics stress-transfer neighbourhood breaks. This chapter provides an overview classical state-of-the-art material models to simulate fibre-dominated process unidirectional composites, predict strength fracture toughness these materials, as well associated size effects. The relevance such for simulation composite components discussed, it demonstrated that correct representation effects at scale fundamental accurately response more structures.