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Contact Models in MercuryDPM

In MercuryDPM contact models consists of Species class and Interaction class.
Species: contains the parameters of the contact law (plus the particle property density)
Interaction: contains the functions to compute the forces

MercuryDPM contains following contact models:

In MercuryDPM MixedSpecies is used to combine difference contact forces e.g. linear spring dashpot model with linear tangential forces ( LinearViscoelasticFrictionSpecies )

You can implement new contact model following the instruction: Implementing a new contact law