Computational aspects of penetration mechanics : proceedings of the Army Research Office Workshop on Computational Aspects of Penetration Mechanics, held at the Ballistic Research Laboratory at Aberdeen Proving Ground, Maryland, 27-29 April 1982 - Army Research Office Workshop on Computational Aspects of Penetration Mechanics; Chandra, J. (Jagdish); Flaherty, J. E. (Lecture notes in engineering, 1983)