Current composites normally fail suddenly and catastrophically, which is an undesirable characteristic for many applications. This presentation describes work as part of the High Performance Ductile Composite Technology programme (HiPerDuCT) to overcome this key limitation. Different fundamental mechanisms have been investigated to create more gradual failure under tensile loading. Results are shown that demonstrate that pseudo-ductility can be introduced by means of fibre reorientation, hybridisation, and slip in discontinuous composites.