| CDS and Graduate Aeronautical Laboratories, Caltech (2008) | |||||||||||||||
Abstract | |||||||||||||||
| This work develops robust contact algorithms capable of dealing with multibody nonsmooth contact geometries for which neither normals nor gap functions can be defined. Such situations arise in the early stage of fragmentation when a number of angular fragments undergo complex collision sequences before eventually scattering. Such situations precludes the application of most contact algorithms proposed to date. 1 Introduction. The problem of existence and uniqueness in problems involving collisions has a long and distinguished history, going back at least to Painlevé [1895]. In these types of problems, the solutions are not continuous functions of time because of velocity jumps; they are also not continuous with respect to initial conditions. There is no general consensus about the best method for settling this issue; it is clear that the answer | |||||||||||||||
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