Ne#, M. and Fiume, E., A Visual Model for Blast Waves and Fracture, in Proceedings of SIGGRAPH 1999 , Computer Graphics Proceedings, Annual Conference Series, pp. 193--202, ACM, ACM Press / ACM SIGGRAPH, 1999. Duc Nguyen, Doug Enright and Ron Fedkiw  Home/Search   Document Details and Download   Summary   Related Articles   Check

....long duration. The computer graphics literature contains techniques for dynamically simulating a wide range of phenomena, including humans [14, 43] creatures [57, 59, 86] fluids [27, 28, 48, 70, 79, 92] rigid and deformable bodies [4, 62, 85, 97] and recently fractures [71] and explosions [68]. In principle, anything that can be described by a solvable system of equations or a set of rules can be simulated. In practice, however, two major technological problems prevent us from building a virtual city: the inability to direct the outcome of many types of simulation, and poor scaling ....

Michael Neff and Eugene Fiume. A visual model for blast waves and fracture. In Proceedings of Graphics Interface '99, pages 193--202, June 1999.

....of existing obstacles, and forces are applied to objects in the direction of the blast radius. Objects are modeled as connected voxels and based on various heuristics, these radial forces may cause the voxels to disconnect. Ne# and Fiume use data from empirical blast curves to model an explosion[12]. The blast curves relate the pressure and velocity of the blast wave to time and are scalable. Unlike Mazarak and colleagues, they use a curve representing the reflection coe#cient to apply forces to objects based on the angle of incidence of the blast wave. They assume quasi static loading ....

M. Ne# and E. Fiume. A visual model for blast waves and fracture. Graphics Interface '99, pages 193--202, June 1999.

.... substrate [8] Mazarak et al. use a voxel based approach to model solid objects that break apart when they encounter a spherical blast wave [9] Neff and Fiume use a recursive pattern generator to divide a planar region into polygonal shards that fly apart when acted on by a spherical blast wave [10]. Fracture has been studied more extensively in the mechanics literature, and many techniques have been developed for simulating and analyzing the behavior of materials as they fail. A number of theories may be used to describe when and how a fracture will develop or propagate, and these theories ....

M. Neff and E. Fiume. A visual model for blast waves and fracture. In Graphics Interface '99, June 1999.

....topic, but space prevents us from describing our approach here. Some good published research exists on sound wave propagation and on the impact of occluding and reflecting objects on wave propagation; a good start would be [23] We develop a heuristic model to account for object occlusions in[14]. Reflection will only be dealt with as it relates to the strength of the initial impact of the wave. Reflections are divided into three categories: normal reflections, oblique reflections and Mach stem formation. Normal reflections occur when the blast wave hits the object head on, or, in other ....

Michael Neff. A visual model for blast waves and fracture. Master's thesis, Department of Computer Science, University of Toronto, 1998.

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Ne#, M. and Fiume, E., A Visual Model for Blast Waves and Fracture, in Proceedings of SIGGRAPH 1999 , Computer Graphics Proceedings, Annual Conference Series, pp. 193--202, ACM, ACM Press / ACM SIGGRAPH, 1999. Duc Nguyen, Doug Enright and Ron Fedkiw

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