A Visual Model For Blast Waves and Fracture
نویسندگان
چکیده
The expense, danger, planning and precision required to create explosions suggests that the computational visual modelling of explosions is worthwhile. However, the short time scale at which explosions occur, and their sheer complexity, poses a difficult modelling challenge. After describing the basic phenomenology of explosion events, we present an efficient computational model of isotropic blast wave transport and an algorithm for fracturing objects in their wake. Our model is based on the notion of a blast curve that gives the force-loading profile of an explosive material on an object as a function of distance from the explosion’s centre. We also describe a technique for fracturing materials loaded by a blast. Our approach is based on the notion of rapid fracture: that microfractures in a material together with loading forces seed a fracturing process that quickly spreads across the material and causes it to fragment.
منابع مشابه
A Visual Model for Blast Waves and Fracture
Explosions generate extreme forces and pressures They cause massive displacement deformation and breakage of nearby objects The chief damage mechanism of high ex plosives is the blast wave which they generate A practical theory of explosives blast waves and blast loading of structures is presented This is used to develop a simpli ed visual model of explosions for use in computer graphics A heur...
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The expense, danger, planning and precision required to create explosions suggests that the computational visual modelling of explosions is worthwhile. However, the short time scale at which explosions occur, and their sheer complexity, poses a difficult modelling challenge. After describing the basic phenomenology of explosion events, we present an efficient computational model of isotropic bl...
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