Main Help → All Commands → MPM Boundary Conditions → GridBC
Forces, tractions, or fluxes are applied to particles in MPM calculations using a series of ParticleBC
each. Each block selects some particle using one suborinate shape command. LoadType Commands within the structure can determine whether the Load Commands specify particle loads or total load on all particles in the current shape. The format for the block is
ParticleBC (one shape command, which can be nested) (any number LoadType and Load commands) (any number of Traction and/or HeatFlux commands) (any number of ConcentrationFlux or PorePressureFlux commands) (any number Damage commands) EndLoadLIne
All particles within the one shape can be assigned to LoadType, Traction, HeatFlux, ConcentrationFlux, PorePressureFlux, or Damage conditions by using commands between ParticleBC
and EndParticleBC