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Energy-conserving contact interaction models for arbitrarily shaped discrete elements / Y.T Feng, K Han, D.R.J Owen, Yuntian Feng, Roger Owen
Computer Methods in Applied Mechanics and Engineering, Volume: 205-208, Pages: 169 - 177
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Energy-conserving contact interaction models for arbitrarily shaped discrete elements
|Published in:||Computer Methods in Applied Mechanics and Engineering|
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The treatment of contact conditions in discrete element models has traditionally been based on simple engineering principles and heuristic approaches. This paper establishes a unified and energetically based formulation for contact modelling applicable to arbitrary shaped particles, which has a clear geometrical interpretation and can recover well-known models used in practice. The approach is implemented in commercial codes, including Rockfield’s discrete element system ELFEN (firstname.lastname@example.org). Specific advantages of the methodology in terms of efficiency and stability have been found by Orica, Australia in application of ELFEN to simulation of their mine blasting operations.
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