Load Cases

In RADIOSS the following load cases are available. Stress/strain as initial state could be considered by modeling, as well as pressure, gravity, and thermal load. Also, different denotation/explosive loads can be defined with /DFS keywords. ALE, CFD and SPH condition (kinematic condition, pressure condition) are also available in this group.

Load Case Types	Keywords	Description
Initial Conditions	/INIBRI	Describes initial state of brick element. Initial state could be stress, strain, density, energy, failure criteria, fill percentage, and so on.
	/INIQUA	Describes initial state of QUAD element. Initial state could be stress, plastic strain, density and energy.
	/INISHE or /INISH3	Describes initial state of shell element. Initial state could be stress, strain, failure criteria, thickness, and so on.
	/INICRACK	Defines the initial line crack position.
	/INISTA	Used to include the .sty file in model as initial state input.
	/INITEMP	Defines initial temperature in node or node group.
	/INIVEL	Defines initial translation or rotation velocity in node group.
	/INIVOL	Defines initial volume fractions of different materials in multi-material ALE elements.
	/STATE/STR_FILE	Used to include .sta file as initial stress state.
Load	/CLOAD	Defines a concentrated force load on each node of node group in translational direction.
	/GRAV	Defines gravity load on node group.
	/LOAD	Defines a load which is computed according to the rotational velocity around an axis.
	/LOAD/PFLUID	Defines hydrodynamic pressure on a structural surface (like parachute).
	/PLOAD	Defines pressure load on a surface.
Thermal	/CONVEC	Defines free or forced convective flux for thermal exchange.
Thermal	/RADIATION	Defines the imposed radiation flux to environment for thermal exchange.
Reference State	/EREF	Used to represent reference geometry (in airbag) as element based geometry.
	/REFSTA	Used to represent reference geometry (in airbag) with reference state file (RunnameRS0) which is as node based geometry.
	/XREF	Used to represent reference geometry (in airbag) as flat node based geometry.
Defense	/DFS/DETLINE	Enables explosive material ignition from a detonation line [A,B]. Node A and B are defined with coordinate.
	/DFS/DETLINE/NODE	Enables explosive material ignition from a detonation line [A,B]. Node A and B are defined with node ID.
	/DFS/DETPLAN	Defines planar detonation wave with propagation direction, detonation velocity, lighting time and containing basis point (with coordinate).
	/DFS/DETPLAN/NODE	Defines planar detonation wave with propagation direction, detonation velocity, lighting time and containing basis point (with node ID).
	/DFS/DETPOINT	Locates the detonation point (with coordinate) and set lighting time for an explosive material law.
	/DFS/DEPOINT/NODE	Locates the detonation point (with node ID) and set lighting time for an explosive material law.
	/DFS/LASER	Enables to model laser impact, due to laser-matter interaction.
	/DFS/WAV_SHA	Used to shape detonation wave due to obstacles.
ALE SPH	/EBCS	Used to set elementary boundary condition, like pressure, energy, velocity and density.
	/EBCS/MONVOL	Used to set elementary boundary conditions, due to communication flux (as in airbag).
	/RWALL/THERM	Defines ALE Rigid Wall and thermal conductivity is taken into account, if close to this rigid wall.
	/SPH/INOUT	Defines general SPH inlet or outlet conditions and Non-Reflective Frontiers.
ALE and CFD Constraints	/ALE/BCS	Used to define fix DOF or free DOF on grid velocity and Lagrange mesh.
ALE and CFD Constraints	/ALE/LINK/VEL	With ALE links on grid velocities, given nodes are linked to the given master grid velocities.
SPH Constraints	/SPHBCS	Defines SPH symmetry boundary condition (kinematic condition).

Load Cases

Load Cases

Load Cases

Initial Conditions

Load

Thermal

Reference State

Defense

ALE SPH

ALE and CFD Constraints

SPH Constraints