MODELING THE IMPACT AND PENETRATION EVENTS OF MODERN ENGINEERING MATERIALS - CHARACTERISTICS OF COMPUTER CODES AND MATERIAL MODELS

Computer programs used to numerically simulate highly dynamic events i n solid mechanics are commonly referred to as hydrocodes or wavecodes. These codes serve also as a numerical test-bed for developing materia ls models. In this paper, starting with some computational aspects of solving the impacts of solids, an up-to-date literature survey to asse ss the state-of-art of these hydrocodes and materials models will be p resented. The review identifies a number of hydrocodes, the similariti es and differences of these hydrocodes are outlined. The relevant stra in rate dependent constitutive equations are also discussed. Examples of the numerical simulation of impact and penetration events are prese nted.