The FLA_TYPE Statement
- Last UpdatedNov 28, 2025
- 2 minute read
In accordance to what is mentioned before, statement FLA_TYPE defines parameters affecting the flange width (FLA_W) and the position of the marking line (MARK_D), related to the base line

Figure 1:8. Folded flange, basis for size calculation.
The idea is to make it possible to let FLA_W and MARK_D be calculated according to the following formulas, where the items above are 'variables' and the customer defines the factors (constants) and R.
|
FLA_W |
= |
W_H_FACT*H + W_RAD_FACT*R + W_T_FACT*T + W_CONST |
|
MARK_D |
= |
M_H_FACT*H + M_RAD_FACT*R + M_T_FACT*T + M_CONST |
where H = a nominal value of the flange height (that means, the size of the flange as given by the user, not necessarily equal to the actual height of the flange)
R = the bending radius
T = material thickness
The coefficients, the constants and the value of R will compose a FLANGE TYPE.
The syntax of the FLA_TYPE statement:
FLA_TYPE, <flatype_no>
|
/RADIUS |
= <radius> |
||
|
[ |
/DEFAULT |
] |
|
|
/W_H_FACT |
= <fact> |
||
|
[ |
/W_RAD_FACT |
= <fact> |
] |
|
[ |
/W_T_FACT |
= <fact> |
] |
|
[ |
/W_CONST |
= <const> |
] |
|
[ |
/M_H_FACT |
= <fact> |
] |
|
[ |
/M_RAD_FACT |
= <fact> |
] |
|
[ |
/M_T_FACT |
= <fact> |
] |
|
[ |
/M_CONST |
= <const> |
] ; |
[] means that the attribute is optional.
<radius>, <fact> and <const> are all real numbers.
|
<flatype_no> |
is an integer and the user's reference number for this flange type. It must be a unique number (among flange types), and not between 200 and 300. |
|
/RADIUS |
Defines the bending radius. |
|
/DEFAULT |
Attribute used if the flange type defined in this statement should be the default type. Only one type may be default. If default is not defined for any type, the first flange type in input will be the default. |
|
/W_H_FACT |
These attributes define constants affecting FLA_W as described above. If any of the attributes is omitted the corresponding value will be set to 0. that W_H_FACT is mandatory. |
|
/M_H_FACT |
These attributes define constants affecting MARK_D as described above. If any of the attributes is omitted the corresponding value will be set to 0. |