5.1.16 *ORIENTATION

Product: ABAQUS/Standard

S4R

The definition of local material axes through the use of the *ORIENTATION option.

In each of the tests the *ORIENTATION option is used to define the material point orientation as shown in Figure 5.1.16–1.

Figure 5.1.16–1 Material point orientation.

Material:

Linear elastic, Young's modulus = 3.0 × 10⁶, Poisson's ratio = 0.3.

Boundary conditions:

= = = 0 at nodes 11 and 14, = 0 for all the nodes.

Loading:

Concentrated forces of 1000 are applied to nodes 12 and 13 at an angle of 45° to the -axis.

The *EL FILE, DIRECTIONS=YES option is used in the input file xorisrdc.inp.

All tests should yield the following results:

Principal Stresses	Principal Strains
= 2000.0	= 6.6662E–5
= 0.0	= –1.9998E–5

*ORIENTATION, NAME=LOCAL,
SYSTEM=RECTANGULAR,
DEFINITION=COORDINATES
2., 1.7071, 0., 1.,
1.4142, 0., 1., 0.7071, 0.
3, 30.

*ORIENTATION, NAME=LOCAL,
SYSTEM=CYLINDRICAL,
DEFINITION=COORDINATES
3.0, 0., 0., 3.0, 1.0, 0.0
2, -15.

*ORIENTATION, NAME=LOCAL,
SYSTEM=SPHERICAL,
DEFINITION=COORDINATES
3., .7071068, 0., 3., 1., 0.
2, -15.

*ORIENTATION, NAME=LOCAL,
SYSTEM=ZRECTANGULAR,
DEFINITION=COORDINATES
0., 0., 1., 1., 1., 0.
3, 30.

*ORIENTATION, NAME=LOCAL,
SYSTEM=RECTANGULAR,
DEFINITION=NODES
12, 13, 11
3, 30.

*ORIENTATION, NAME=LOCAL,
SYSTEM=CYLINDRICAL,
DEFINITION=NODES
11, 12
2, 30.

*ORIENTATION, NAME=LOCAL,
SYSTEM=SPHERICAL,
DEFINITION=NODES
12, 13
2, -15.

*ORIENTATION, NAME=LOCAL,
SYSTEM=ZRECTANGULAR,
DEFINITION=NODES
11, 12
2, 75.

*ORIENTATION, NAME=LOCAL,
SYSTEM=RECTANGULAR,
DEFINITION=OFFSET
2, 3
3, 30.

*ORIENTATION, NAME=LOCAL,
SYSTEM=CYLINDRICAL,
DEFINITION=OFFSET
1, 2
2, 30.

*ORIENTATION, NAME=LOCAL,
SYSTEM=SPHERICAL,
DEFINITION=OFFSET
1, 2
3, 75.

*ORIENTATION, NAME=LOCAL,
SYSTEM=ZRECTANGULAR,
DEFINITION=OFFSET
2, 3
3, 30.