Properties

Different properties are available in RADIOSS and used to describe different elements. Like solid (8-node brick, 4-node or 10-node tetra, shell (3-node or 4-node shell), spring, beam, truss or joint. Together with material it was assembled with /PART for each structure member.

Property Type

Property Type	Fixed Format Number	Description	Keywords	Application
Truss property	2	Truss element	TYPE2, TRUSS	Truss, bar
Beam properties	3	Beam element	TYPE3, BEAM	Used for simulate beam under axial loading, torsion and bending.
Beam properties	18	Integrated beam property	TYPE18, INT_BEAM	Used for deep beam cases (short beams). Beam section and position of integration points can be either used as predefined or stated directly.
Spring and Joint properties	4	Spring element	TYPE4, SPRING	Physical spring or physical dashpot
	8	General spring element	TYPE8, SPR_GENE	With 6 independent DOF to describe general spring joint
	12	3-node spring element	TYPE12, SPR_PUL	Pully, seatbelt
	13	Beam type spring element	TYPE13, SPR_BEAM	Spotweld
	25	Axisymmetric spring	TYPE25, SPR_AXI	Axisymmetric Spring
	26	Tabulated spring element	TYPE26, SPR_TAB	Spring, spotweld
	28	Multi-strand element	TYPE28, NSTRAND	Seat belt
	32	Pretensioner spring	TYPE32, SPR_PRE	pretension spring
	33	Joint type spring	TYPE33, KJOINT	Used for different kinematic joint (spherical, revolute, cylindrical, planar, universal, translational, Oldham, rigid or free joint)
	35	Airbag stitch spring	TYPE35, STITCH	"stitch" spring in airbag simulation
	36	Predit spring	TYPE36, PREDIT	Beam-like spring element for spot-weld
	44	Crushable frame spring property	TYPE44, SPR_CRUS	Used to simulate crushable frame in car body to quick reproduce buckling behavior
	45	Joint type spring	TYPE45, KJOINT2	Used for different kinematic joint (spherical, revolute, cylindrical, planar, universal, translational, Oldham, rigid or free joint)
	46	Spring property for modeling of muscles	TYPE46, SPR_MUSCLE	Muscle
Shell properties	1	Shell element	TYPE1, SHELL	Used for general 3-node or 4-node shell
	9	Orthotropic shell element	TYPE9, SH_ORTH	For orthotropic material
	10	Composite shell element	TYPE10, SH_COMP	For composite material
	11	Sandwich shell element	TYPE11, SH_SANDW	For composite material
	16	Anisotropic shell element	TYPE16, SH_FABR	For composite material
	17	Sandwich shell property set	TYPE17, STACK	For composite material
	19	Ply-based composite definition	TYPE19, PLY	For composite material
	51	Stacking information for ply-based Sandwich Shell Property Set	TYPE51	For composite material
	--	Define ply-based input through option /STACK and /PLY	PCOMPP	For composite material
Composite options	--	Stacking information for ply-based Sandwich Shell Property Set	STACK	For composite material
	--	Ply-based composite definition	PLY	For composite material
	--	Define Fiber Orientation Change and Thinning for a Ply, due to draping	DRAPE	For composite material
Thick Shell properties	20	General thick shell element	TYPE20, TSHELL	Thick wall structure , massive junctions
	21	Orthotropic thick shell element	TYPE21, TSH_ORTH	Orthotropic thick wall structure or massive junctions
	22	Composite thick shell property set	TYPE22, TSH_COMP	Thick wall structure or massive junctions for composite
Brick properties	6	Orthotropic solid element	TYPE6, SOL_ORTH	Fiber plane, steel reinforcement direction or cell direction for honeycomb
	14	General solid element	TYPE14, SOLID	Used for general solid element like 8-node brick, 4-node or 10-node tetra
	43	Property for connection material	TYPE43, CONNECT	Used with LAW59 or LAW83 to describe solid spot-weld or adhesive structure
SPH property	34	SPH property	TYPE34, SPH	Used for SPH part
CFD properties	14	General fluid property	TYPE14, FLUID	General Fluid
CFD properties	15	Porous fluid solid	TYPE15, POROUS	Air, gas
Other properties	0	Void element	TYPE0, VOID	Used for contact interface
	29	User’s property	TYPE29, USER1	User defined property
	30	User’s property	TYPE30, USER2	User defined property
	31	User’s property	TYPE31, USER3	User defined property

Comments

1.	Property types 1, 2, 3, 4, 6, 8, 9, 10, 11, 12, 13, 14 (SOLID), 16, 18, 19, 20, 21, 22, 25, 26, 28, 32, 33, 35, 36, 43, 44, 46, 51 and PCOMPP are compatible with local units system.

For shell and thick shell composite parts, with /PROP/SH_COMP, /PROP/SH_SANDW, /PROP/TSH_ORTH or /PROP/TSH_COMP, materials are defined directly in the property card. The failure criteria defined within these materials (for example, LAW25) are accounted for. Material referred to in the /PART card is only for calculation of time step and contact stiffness.

3.	TYPE1 (SHELL), TYPE11 (SH_SANDW), or TYPE51 properties are compatible with XFEM, provided failure model FLD, JOHNSON, TAB1, or TBUTCHER is used.

4.	/PROP/TYPE51 and /FAIL/TAB1 cannot be used with XFEM yet.

5.	Currently, XFEM is only 2D element compatible.