4.7.1.13. Stress

4.7.1.13.1. STRESS

The STRESS function returns the stress acting on a designated node on a flexible body.

Format

Using reference marker

STRESS(Node id, Type, RMarker{, Position})

Using 3 reference nodes

STRESS(Node id, Type, Node id, Node id, Node id{, Position})

Arguments definition

NodeID		Node number, including the names of the FFlex or RFlex Body, or argument number for the nodes to calculated for the stress value
Type		Symbol that indicates the type of stress to measure Stress Type Description Basic stress X x direction from x face Y y direction from y face Z z direction from z face XY y direction from x face YZ z direction from y face ZX z direction from z face Principal stress E1 First principal E2 Second principal E3 Third principal Intensity INT Von-mises stress VON
SettingReferenceFrame	R Marker	The name or argument number of the standard marker for direction to be measured
	3 reference nodes	The name or argument number of the 3 reference nodes which define reference frame to be measured
Position		Recovery Position for FFlex output node Type Meaning of Calculated data TOP SOLID + SHELL TOP + BEAM MAX DIST BOTTOM SOLID + SHELL BOTTOM + BEAM MAX DIST MD SOLID + SHELL TOP + BEAM MAX DIST C SOLID + SHELL TOP + BEAM C D SOLID + SHELL TOP + BEAM D E SOLID + SHELL TOP + BEAM E F SOLID + SHELL TOP + BEAM F MV SOLID + SHELL TOP + BEAM MAX VMISES TOP_MD SOLID + SHELL TOP + BEAM MAX DIST TOP_C SOLID + SHELL TOP + BEAM C TOP_D SOLID + SHELL TOP + BEAM D TOP_E SOLID + SHELL TOP + BEAM E TOP_F SOLID + SHELL TOP + BEAM F TOP_MV SOLID + SHELL TOP + BEAM MAX VMISES BOTTOM_MD SOLID + SHELL BOTTOM + BEAM MAX DIST BOTTOM_C SOLID + SHELL BOTTOM + BEAM C BOTTOM_D SOLID + SHELL BOTTOM + BEAM D BOTTOM_E SOLID + SHELL BOTTOM + BEAM E BOTTOM_F SOLID + SHELL BOTTOM + BEAM F BOTTOM_MV SOLID + SHELL TOP + BEAM MAX VMISES ONLY_TOP SHELL TOP ONLY_BOTTOM SHELL BOTTOM ONLY_MD BEAM MAX DIST ONLY_C BEAM C ONLY_D BEAM D ONLY_E BEAM E ONLY_F BEAM F ONLY_MV BEAM MAX VMISES ONLY_SOLID SOLID If the recovery position is not specified, the default value is the TOP for shell and MD for beam. If the RFlex body has only one stress shape, this argument is ignored.

Reference Frame defined by 3 reference nodes

Figure 4.75 Definition of 3 nodal points reference frame

The reference frame defined by 3 nodal points is like above figure. X direction is parallel to the vector from reference node1 to reference node2 and Z direction is normal to the face which consist of 3 nodal points.

Example

STRESS(Body1_FE.node1,X,Ground.InertiaMarker)

STRESS(1,VON,2) < Argument: (1) Body1_FE.node1 (2) Ground.InertiaMarker>

Figure 4.76 Example Expression using Stress function using RM

STRESS(1,VON,2,3,4) < Argument: (1) Body1_FE.node50588 (2) Body1_FE.node50578 (3) Body1_FE.node50579 (4) Body1_FE.node50562 >

Figure 4.77 Example Expression using Stress function using 3 reference nodes

Note

The stress expression must not be used to apply the dependent force. Only the expression is used in the post procedure. In order to see the stress result for non-output nodes in Scope Expression, all component such as SX, SY etc should be included in output files.

4.7.1.13.2. STRAIN

The STRAIN function returns the strain acting on a designated node on a flexible body.

Format

Using reference marker

STRAIN(Node id, Type, RMarker{, Position})

Using 3 reference nodes

STRAIN(Node id, Type, Node id, Node id, Node id{, Position})

Arguments definition

Node ID		Node number, including the names of the FFlex or RFlex Body, or argument number for the nodes to calculated for the strain value
Type		Symbol that indicates the type of strain to measure Strain Type Description Basic strain X x direction from x face Y y direction from y face Z z direction from z face XY y direction from x face YZ z direction from y face ZX z direction from z face Principal strain E1 First principal E2 Second principal E3 Third principal Intensity INT Von-mises strain VON
SettingReferenceFrame	RMarker	The name or argument number of the standard marker for direction to be measured
	3 reference nodes	The name or argument number of the 3 reference nodes which define reference frame to be measured
Position		Recovery Position for FFlex output node Ty pe Meaning of Calculated data TOP SOLID + SHELL TOP + BEAM MAX DIST BO TTOM SOLID + SHELL BOTTOM + BEAM MAX DIST MD SOLID + SHELL TOP + BEAM MAX DIST C SOLID + SHELL TOP + BEAM C D SOLID + SHELL TOP + BEAM D E SOLID + SHELL TOP + BEAM E F SOLID + SHELL TOP + BEAM F MV SOLID + SHELL TOP + BEAM MAX VMISES TO P_MD SOLID + SHELL TOP + BEAM MAX DIST T OP_C SOLID + SHELL TOP + BEAM C T OP_D SOLID + SHELL TOP + BEAM D T OP_E SOLID + SHELL TOP + BEAM E T OP_F SOLID + SHELL TOP + BEAM F TO P_MV SOLID + SHELL TOP + BEAM MAX VMISES B OTTO M_MD SOLID + SHELL BOTTOM + BEAM MAX DIST BOTT OM_C SOLID + SHELL BOTTOM + BEAM C BOTT OM_D SOLID + SHELL BOTTOM + BEAM D BOTT OM_E SOLID + SHELL BOTTOM + BEAM E BOTT OM_F SOLID + SHELL BOTTOM + BEAM F B OTTO M_MV SOLID + SHELL TOP + BEAM MAX VMISES ONLY _TOP SHELL TOP ONL Y_BO TTOM SHELL BOTTOM ONL Y_MD BEAM MAX DIST ON LY_C BEAM C ON LY_D BEAM D ON LY_E BEAM E ON LY_F BEAM F ONL Y_MV BEAM MAX VMISES ON LY_S OLID SOLID If the recovery position is not specified, the default value is the TOP for shell and MD for beam. If the RFlex body has only one stress shape, this argument is ignored.

Reference Frame defined by 3 reference nodes

Figure 4.78 Definition of 3 nodal points reference frame

The reference frame defined by 3 nodal points is like above figure. X direction is parallel to the vector from reference node1 to reference node2 and Z direction is normal to the face which consist of 3 nodal points.

Example

STRAIN(Body1_FE.node1,X,Ground.InertiaMarker)

STRAIN(1,VON,2) < Argument: (1) Body1_FE.node1 (2) Ground.InertiaMarker>

Figure 4.79 Example Expression using Strain function using RM

STRAIN(1,VON,2,3,4) < Argument: (1) Body1_FE.node50588 (2) Body1_FE.node50578 (3) Body1_FE.node50579 (4) Body1_FE.node50562 >

Figure 4.80 Example Expression using Strain function using 3 reference nodes

Note

The strain expression must not be used to apply the dependent force. Only the expression is used in the post procedure. In order to see the strain result for non-output nodes in Scope Expression, all component such as EX, EY etc should be included in output files.

4.7.1.13.3. STRESS_MINMAX

The STRESS_MINMAX function returns the maximum or minimum nodal stress in a node set generated from a flexible body.

Format

Using reference marker

STRESS_MINMAX(NodeSetID, MinMaxFlag, Type, RMarker{, Position})

Using 3 reference nodes

STRESS_MINMAX(NodeSetID, MinMaxFlag, Type, Node id, Node id, Node id{, Position})

Arguments definition

NodeSetID		Node set number, including the names of the FFlex or RFlex Body, or argument number for the Node set to be calculated for the stress value
MinMaxFlag		Flag for min/max. 1 : min, 2 : max
Type		Symbol that indicates the type of stress to measure Stress Type Description Basic stress X x direction from x face Y y direction from y face Z z direction from z face XY y direction from x face YZ z direction from y face ZX z direction from z face Principal stress E1 First principal E2 Second principal E3 Third principal Intensity INT Von-mises stress VON
SettingReferenceFrame	R Marker	The name or argument number of the standard marker for direction to be measured
	3 reference nodes	The name or argument number of the 3 reference nodes which define reference frame to be measured
Position		Recovery Position for FFlex output node Type Meaning of Calculated data TOP SOLID + SHELL TOP + BEAM MAX DIST BOTTOM SOLID + SHELL BOTTOM + BEAM MAX DIST MD SOLID + SHELL TOP + BEAM MAX DIST C SOLID + SHELL TOP + BEAM C D SOLID + SHELL TOP + BEAM F E SOLID + SHELL TOP + BEAM E F SOLID + SHELL TOP + BEAM F MV SOLID + SHELL TOP + BEAM MAX VMISES TOP_MD SOLID + SHELL TOP + BEAM MAX DIST TOP_C SOLID + SHELL TOP + BEAM C TOP_D SOLID + SHELL TOP + BEAM F TOP_E SOLID + SHELL TOP + BEAM E TOP_F SOLID + SHELL TOP + BEAM F TOP_MV SOLID + SHELL TOP + BEAM MAX VMISES BOTTOM_MD SOLID + SHELL BOTTOM + BEAM MAX DIST BOTTOM_C SOLID + SHELL BOTTOM + BEAM C BOTTOM_D SOLID + SHELL BOTTOM + BEAM F BOTTOM_E SOLID + SHELL BOTTOM + BEAM E BOTTOM_F SOLID + SHELL BOTTOM + BEAM F BOTTOM_MV SOLID + SHELL TOP + BEAM MAX VMISES ONLY_TOP SHELL TOP ONLY_BOTTOM SHELL BOTTOM ONLY_MD BEAM MAX DIST ONLY_C BEAM C ONLY_D BEAM D ONLY_E BEAM E ONLY_F BEAM F ONLY_MV BEAM MAX VMISES ONLY_SOLID SOLID If the recovery position is not specified, the default value is the TOP for shell and MD for beam. If the RFlex body has only one stress shape, this argument is ignored.

Reference Frame defined by 3 reference nodes

Figure 4.81 Definition of 3 nodal points reference frame

The reference frame defined by 3 nodal points is like above figure. X direction is parallel to the vector from reference node1 to reference node2 and Z direction is normal to the face which consist of 3 nodal points.

Example

STRESS_MINMAX(Body1_FE.SetNode1,1,X,Ground.InertiaMarker)

STRESS_MINMAX(1,1,VON,2) < Argument: (1) Body1_FE.SetNode1 (2) Ground.InertiaMarker >

Figure 4.82 Example Expression using STRESS_MINMAX function using RM

STRESS_MINMAX(1,1,VON,2,3,4) < Argument: (1) Body1_FE.SetNode1 (2) Body1_FE.node50014 (3) Body1_FE.node50075 (4) Body1_FE.node50086 >

Figure 4.83 Example Expression using STRESS_MINMAX function using 3 reference nodes

Note

The STRESS_MINMAX expression must not be used to apply the dependent force. Only the expression is used in the post procedure.

4.7.1.13.4. STRAIN_MINMAX

The STRAIN_MINMAX function returns the maximum or minimum nodal strain in a node set generated from a flexible body.

Format

Using reference marker

STRAIN_MINMAX(NodeSetID, MinMaxFlag, Type, RMarker{, Position})

Using 3 reference nodes

STRAIN_MINMAX(NodeSetID, MinMaxFlag, Type, Node id, Node id, Node id{, Position})

Arguments definition

NodeSet ID		Node set number, including the names of the FFlex or RFlex Body, or argument number for the Node set to calculated for the strain value
MinMaxFlag		Flag for min/max. 1 : min, 2 : max
Type		Symbol that indicates the type of strain to measure Strain Type Description Basic strain X x direction from x face Y y direction from y face Z z direction from z face XY y direction from x face YZ z direction from y face ZX z direction from z face Principal strain E1 First principal E2 Second principal E3 Third principal Intensity INT Von-mises strain VON
SettingReferenceFrame	R Marker	The name or argument number of the standard marker for direction to be measured
	3 reference nodes	The name or argument number of the 3 reference nodes which define reference frame to be measured
Position		Recovery Position for FFlex output node Type Meaning of Calculated data TOP SOLID + SHELL TOP + BEAM MAX DIST BOTTOM SOLID + SHELL BOTTOM + BEAM MAX DIST MD SOLID + SHELL TOP + BEAM MAX DIST C SOLID + SHELL TOP + BEAM C D SOLID + SHELL TOP + BEAM F E SOLID + SHELL TOP + BEAM E F SOLID + SHELL TOP + BEAM F MV SOLID + SHELL TOP + BEAM MAX VMISES TOP_MD SOLID + SHELL TOP + BEAM MAX DIST TOP_C SOLID + SHELL TOP + BEAM C TOP_D SOLID + SHELL TOP + BEAM F TOP_E SOLID + SHELL TOP + BEAM E TOP_F SOLID + SHELL TOP + BEAM F TOP_MV SOLID + SHELL TOP + BEAM MAX VMISES BOTTOM_MD SOLID + SHELL BOTTOM + BEAM MAX DIST BOTTOM_C SOLID + SHELL BOTTOM + BEAM C BOTTOM_D SOLID + SHELL BOTTOM + BEAM F BOTTOM_E SOLID + SHELL BOTTOM + BEAM E BOTTOM_F SOLID + SHELL BOTTOM + BEAM F BOTTOM_MV SOLID + SHELL TOP + BEAM MAX VMISES ONLY_TOP SHELL TOP ONLY_BOTTOM SHELL BOTTOM ONLY_MD BEAM MAX DIST ONLY_C BEAM C ONLY_D BEAM D ONLY_E BEAM E ONLY_F BEAM F ONLY_MV BEAM MAX VMISES ONLY_SOLID SOLID If the recovery position is not specified, the default value is the TOP for shell and MD for beam. If the RFlex body has only one stress shape, this argument is ignored.

Reference Frame defined by 3 reference nodes

Figure 4.84 Definition of 3 nodal points reference frame

The reference frame defined by 3 nodal points is like above figure. X direction is parallel to the vector from reference node1 to reference node2 and Z direction is normal to the face which consist of 3 nodal points.

Example

STRAIN_MINMAX(Body1_FE.SetNode1,1,X,Ground.InertiaMarker)

STRAIN_MINMAX(1,1,VON,2) < Argument: (1) Body1_FE.node1 (2) Ground.InertiaMarker >

Figure 4.85 Example Expression using STRAIN_MINMAX function using RM

STRAIN_MINMAX(1,1,VON,2,3,4) < Argument: (1) Body1_FE.SetNode1 (2) Body1_FE.node50014 (3) Body1_FE.node50075 (4) Body1_FE.node50086 >

Figure 4.86 Example Expression using STRAIN_MINMAX function using 3 reference node

Note

The STRAIN_MINMAX expression must not be used to apply the dependent force. Only the expression is used in the post procedure.