Records Written for Any Element Matrix or Substructure Matrix File Output Request

This section describes the format of the individual records in the Abaqus results file.

The ordering of variables on element matrices is the same as that used for user elements (see User-Defined Elements): first the variables at the element's first node, then those at its second node, etc. Abaqus allows elements to have repeated nodes.

Record Format: Records Written for Any Element Matrix or Substructure Matrix File Output Request

1001 Element matrix header record
  1. Element number (zero if this is a substructure).
  2. Element or substructure type in A8 format.
  3. Number of nodes on the element.
  4. Node number of the element's first node.
  5. Node number of the element's second node.
  6. Etc.
1002 Element or substructure recovery matrix nodal DOF
  1. First DOF at the element's or at the recovery matrix's first retained node.
  2. Second DOF at the element's or at the recovery matrix's first retained node.
  3. Etc.
1003 Element or substructure recovery matrix nodal DOF change
  1. Node where the DOFs change.
  2. First DOF at this node.
  3. Second DOF at this node.
  4. Etc.
1004 Element matrix record size
  1. Maximum record length (including the record length and record key words) for element matrix and load vector records that follow. The matrix or load vector records will be subdivided into multiple records as needed to fit within this maximum length. The record key for any continuation record will be the same as for the first record.
1005 Element matrix header (continued)
  1. Element node number continued from record 1001 (if necessary).
  2. Etc.
1011 Symmetric element stiffness matrix
  1. (1, 1) stiffness.
  2. (1, 2) stiffness.
  3. (2, 2) stiffness.
  4. Etc., stored in columns, from the first row to the diagonal term of each column.
1012 Nonsymmetric element stiffness matrix
  1. (1, 1) stiffness.
  2. (2, 1) stiffness.
  3. (3, 1) stiffness.
  4. Etc., stored in columns.
1021 Symmetric element mass matrix
  1. (1, 1) mass.
  2. (1, 2) mass.
  3. (2, 2) mass.
  4. Etc., stored in columns, from the first row to the diagonal term of each column.
1022 Nonsymmetric element mass matrix
  1. (1, 1) mass.
  2. (2, 1) mass.
  3. (3, 1) mass.
  4. Etc., stored in columns.
1031 Load vector
  1. Load case.
  2. Load on first DOF.
  3. Load on second DOF.
  4. Etc.
1032 Substructure load case vector
  1. Load case name (A8 format).
  2. Load on first DOF.
  3. Load on second DOF.
  4. Etc.
1041 Substructure recovery matrix header record
  1. Zero.
  2. Element or substructure type in A8 format.
  3. Number of eliminated nodes.
  4. Node number of the first eliminated node.
  5. Node number of the second eliminated node.
  6. Etc.
1042 Substructure recovery matrix
  1. Column number corresponding to the retained DOFs list.
  2. Coefficient of first eliminated DOF.
  3. Coefficient of second eliminated DOF.
  4. Etc.
1043 Substructure recovery matrix header (continued)
  1. Node number continued from record 1041 (if necessary).
  2. Etc.