DVMREL1

Bulk Data Entry Linearly relates a design variable to an analysis model material property using the equation: MP i = C 0 + i COEF i DVID i

Format

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
DVMREL1 ID TYPE MID MPNAME/

FID

    C0    
  DVID1 COEF1 DVID2 COEF2 etc.        

Example 1

To relate the Damping Coefficient value on a MAT1 card (field 9) to Design Variable 5.
(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
DVMREL1 17 MAT1 22 9     0.0    
  5 1.0              

Example 2

This example is the same as Example 1, except that it defines MPNAME in place of FID.
(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
DVMREL1 17 MAT1 22 GE     0.0    
  5 1.0              

Associated Cards

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
DESVAR 5 GE 1.0 2.0 0.5        
MAT1 22 2.1e5   0.3 7.85e-9     1.0  

Definitions

Field Contents SI Unit Example
ID Relationship identification number. ID must be unique with respect to other DVMREL1 cards.

No default (Integer > 0)

 
TYPE Material type to be related (MAT1, MAT2, MAT4, MAT5, MAT8, MAT9, or MAT9OR).

No default (Character)

 
MID Material identification number.

No default (Integer > 0)

 
MPNAME/FID Material property name, such as "E" or "RHO" (as in the documentation of the material Bulk Data Entries), or field number on a material Bulk Data Entry.

No default (Character or Integer > 0)

 
C0 Constant in relationship equation.

Default = 0.0 (Real)

 
DVIDi DESVAR ID.

No default (Integer > 0)

 
COEFi Coefficient in relationship equation.

Default = 1.0 (Real)

 

Comments

  1. See the DVMREL - Types section for details on the supported material fields and the MPNAME/FID entries.