Hi Bruno, allow me a question about the way we compute the shear part. Following the Cundall's model, no problem of ratcheting would arise since he defines the branch vectors as radius*normal. Now in Yade if we avoid granular ratcheting we follow exactly the same way. So, apart from ratcheting, why should the current length of the interaction be preferred? Why this was introduced in the code?
Thanks. Chiara
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