The fourth edition of the Aerospace Structural Impact Dynamics International Conference is being held June 4th-6th 2019, at the University Carlos III de Madrid (UC3M) in Madrid, Spain. The conference will once more provide a forum for researchers, regulatory agencies and industry professionals to present and discuss the latest aerospace crashworthiness regulations, structural impact dynamics, computational & experimental techniques, technologies and current research. The 2019 edition of the ASIDI Conference will be comprised of four technical sessions, two technical workshops, two keynote speaker presentations, and two keynote lectures.