User subroutine to define an element.

Warning: This feature is intended for advanced users only. Its use in all but the simplest test examples will require considerable coding by the user/developer. User-defined elements should be read before proceeding.

User subroutine UEL:

  • will be called for each element that is of a general user-defined element type (i.e., not defined by a linear stiffness or mass matrix read either directly or from results file data) each time element calculations are required; and

  • (or subroutines called by user subroutine UEL) must perform all of the calculations for the element, appropriate to the current activity in the analysis.

The following topics are discussed:

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User-defined elements