Block Format Keyword Describes the time history for trusses.


(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
var_ID1 var_ID2 var_ID3 var_ID4 var_ID5 var_ID6 var_ID7 var_ID8 var_ID9 var_ID10
elem_ID   elem_name      


Field Contents SI Unit Example
thgroup_ID TH group identifier

(Integer, maximum 10 digits)

thgroup_name TH group name

(Character, maximum 100 characters)

var_ID1, ...n Variables saved for TH (see table below)

(Character, maximum 8 characters)

elem_ID Element identifier


elem_name Name of the element to appear in the time history

(Integer, maximum 80 characters)


TH Output Keyword & Variables

Keyword Object Saved Variables
TRUSS Trusses OFF, F, IE, A, L, PLAS

Table of Available Variables - Part 2

Keyword Variable group Saved TH Variables

Output for Available Material Law

Output Material Law
OFF: element flag for deactivation 2 /PLAS_PREDEF, 1, 2, 44
F: normal force /PLAS_PREDEF, 1, 2, 44
IE: internal energy /PLAS_PREDEF, 1, 2, 44
A: area /PLAS_PREDEF, 1, 2, 44
L: initial length /PLAS_PREDEF, 1, 2, 44
PLAS: equivalent plastic strain /PLAS_PREDEF, 2, 44


  1. Available names are listed in the two tables above.

    In the first table, TH-variables are listed. If a TH-variable is requested, this variable is written.

    In the second table, other variable groups are listed. If a variable group is requested, all the associated TH-variables are written at once.

  2. OFF:
    • 0.0 deleted element
    • 1.0 active element
    • 2.0 (shells / solids): active element using small strain
    • Negative value -1/-2 when the element is on stand by due to rigid body

    Some intermediate values can be found during few cycles before element deletion (progressive reduction of off during a few cycles applies as a multiplicative factor to the stress, so that the stress is progressively vanished and element is deleted after ~ 10 cycles). This process applies to some element types, but not all.