Introduction to the Special Issue on Design and Simulation in Additive Manufacturing

As a key technology in the advanced manufacturing field,additive manufacturing(AM)technology introduces a new design concept that is guided by function rather than by manufacturing,promoting the rapid development of the high-tech industry.However,as-fabricated parts have an unstable performance in quality due to rapid heating and rapid cooling induced by energy source.Therefore,quality control of the manufacturing process,which is mainly studied by numerical simulation,is one of the most active research topics in the AM field.In the view of increasing attention in AM technology,this special issue contributes to highlighting recent challenges and developments of AM-based design and simulation,with focuses on microstructure stability and evolution,multi-physics problems and process enhancements.