STRESS
| (Object data - 3D) | Â |
|---|---|
| Update History: v11 - Stress tensor at 8 integration points has been added for 3D brick element. | Last updated on : 13-08-2013 |
STRESS Object, Ndata, DefStress, Nnode, DefNodeStress
or
(If “Integration Point” stress is requested for output, ELMNOD=3)
STRESS Object, Ndata, 0.0, Nnode, 0.0, NIntPts
(If “element” stress is requested for output, ELMNOD=0)
Element(1), X1(1), X2(1), X3(1), X4(1), X5(1), X6(1)
::
Element(Ndata), X1(Ndata), X2(Ndata),X3(Ndata),X4(Ndata),X5(Ndata),X6(Ndata)
(If dual “element + nodal” stress is requested for output, ELMNOD=2)
Element(1), X1(1), X2(1), X3(1), X4(1), X5(1), X6(1)
::
Element(Ndata), X1(Ndata), X2(Ndata),X3(Ndata),X4(Ndata),X5(Ndata),X6(Ndata)
Node(1), X1(1), X2(1), X3(1), X4(1), X5(1), X6(1)
::
Node(Nnode), X1(Nnode), X2(Nnode), X3(Nnode), X4(Nnode), X5(Nnode), X6(Nnode)
(Only for brick element with eight integration points, NIntPts=8)
(If “Integration Point” stress is requested for output, ELMNOD=3)
Element(1)
X1(1,1), X2(1,1), X3(1,1), X4(1,1), X5(1,1), X6(1,1)
::
X1(NIntPts,1), X2(NIntPts,1), X3(NIntPts,1), X4(NIntPts ,1), X5(NIntPts,1), X6(NIntPts,1)
::
Element(Ndata)
X1(1,Ndata), X2(1,Ndata), X3(1,Ndata), X4(1,Ndata), X5(1,Ndata), X6(1,Ndata )
::
X1(NIntPts,Ndata), X2(NIntPts,Ndata), X3(NIntPts,Ndata), X4(NIntPts,Ndata),
X5(NIntPts,Ndata), X6(NIntPts,Ndata)
| OPERAND | DESCRIPTION | DEFAULT |
|---|---|---|
| Object | Object Number | None |
| Ndata | Number of elements | None |
| DefStress | Default elemental stress value | 0.0 |
| Nnode | Number of nodes | None |
| DefNodeStress | Default nodal stress value | Â |
| NIntPts | Number of integration points per element = 8 Brick element = 1 Tet element (same as elemental output option) | 8 |
| X1(i) | Sigma X of ith data set | None |
| X2(i) | Sigma Y of ith data set | None |
| X3(i) | Sigma Z of ith data set | None |
| X4(i) | Tau XY of ith data set | None |
| X5(i) | Tau YZ of ith data set | None |
| X6(i) | Tau XZ of ith data set | None |
DEFINITION
STRESS defines the stress tensors of each element of an object.
REMARKS
X1 is the value of Sigma X(
), X2 is Sigma Y(
), X3 is Sigma Z(
), X4 is Tau XY(
), X5 is Tau YZ(
) and X6 is Tau XZ(
). The keyword format varies depending on stress output selection made at ELMNOD. For element output (ELMNOD = 0) option, stress at the centroid of each element is written. For dual output (ELMNOD = 2) option, stress at the centroid of element and at node are written. For brick element case with integration point (ELMNOD = 3) option, stress at eight integration points in element are written. The stress tensor,
, of the object is represented by the matrix: 
Note: This integration point option is valid only for brick element whose stress values are evaluated at 8 integration points per element during FEM calculation. For Tetrahedral element, integration point output option is same as elemental output option. Applicable object types: Plastic, Elastoplastic, Porous
RELATED TOPICS
Related keywords: ELMNELMNOD (2D3D)OD