Although frictional effects often constitute an important aspect of physical boundaries, the current material point method (MPM) implementation in Kratos Multiphysics lacks the ability to represent friction boundaries. To address this gap, the existing Kratos implementation for slip boundaries is extended in the present work to incorporate the effects of Columb friction. Validation of the implemented frictional boundary condition suggested that the implemented frictional boundary accurately reflects the theoretical behaviour of Columb friction in most cases, except for cases very close to the point of transition between static and dynamic friction. Nevertheless, the overall motions of simulated bodies are accurate even for cases with a dynamic to static transition and vice-versa, as long as the friction forces are not expected to be very close to the point of transition for a prolonged period of time.     «

Although frictional effects often constitute an important aspect of physical boundaries, the current material point method (MPM) implementation in Kratos Multiphysics lacks the ability to represent friction boundaries. To address this gap, the existing Kratos implementation for slip boundaries is extended in the present work to incorporate the effects of Columb friction. Validation of the implemented frictional boundary condition suggested that the implemented frictional boundary accurately refl...     »