Bulk Data Entry Defines a tabular function for use in generating
temperature-dependent material properties. Also contains parametric data for use with the
table.
Format
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
TABLEM2
TID
X1
FLAT
x1
y1
x2
y2
x3
y3
etc.
Example
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
TABLEM2
15
-10.5
1.0
-4.5
2.0
-4.5
2.0
2.8
7.0
6.5
SKIP
SKIP
9.0
6.5
ENDT
Definitions
Field
Contents
SI Unit Example
TID
Table identification
number.
(Integer > 0)
X1
Table
parameter.
(Real)
FLAT
Specifies the handling method for y-values outside the specified
range of x-values in the table.
=0 (Default)
If an x-value input is outside the range of x-values specified on the
table, the corresponding y-value look up is performed using linear
extrapolation from the two start or two end points.
=FLAT or 1
If an x-value input is outside the range of x-values specified on the
table, the corresponding y-value is equal to the start or end points,
respectively.
xi,
yi
Tabular values.
Any
xi-yi pair may be
ignored by placing SKIP in either of the two
fields.
(Real)
Comments
must be in either ascending or descending order,
but not both.
Discontinuities may be specified between
any two points except the two starting points or two end points. For example, in
Figure 1, discontinuities are allowed only between points through . Also, if is evaluated at a discontinuity, then the
average value of is used. In Figure 1, the value of at is .
At least one continuation entry must be
specified.
The end of the table is indicated by the
existence of ENDT in either of the two fields following the last
entry. An error is detected if any continuations follow the entry containing the
end-of-table flag ENDT.
For
FLAT=0 (default),
TABLEM2 uses the algorithm:
Where,
Input to the table
Is returned
Is supplied from the MATi entry
The table look-up is performed using linear interpolation within
the table and linear extrapolation outside the table using the two start or
end points (Figure 1). No warning messages are issued if table data is input
incorrectly.Figure 1. Example of Table Extrapolation and Discontinuity
For FLAT=1, the same
algorithm as FLAT=0 is used, except that
values outside the range are not extrapolated. The corresponding start or
end point y-values are used for all y-values outside the range.
This card is represented as a load
collector in HyperMesh.