2011 ANSYS, Inc. March 11, 20131

Lecture 0Welcome to the UPFs class!

Implementing User-Programmable Features (UPFs) in ANSYS

2011 ANSYS, Inc. March 11, 20132

Welcome!

Welcome to the Implementing User-Programmable

Features (UPFs) in ANSYS training course!

This course includes lectures on how to implement user-

programmable features (UPFs) which are ANSYS

capabilities for which you can write your own Fortran

routines. UPFs allow you to customize the ANSYS program

to your needs, which may be a user-defined material

constitutive equation, element, failure criterion (for

composites), and so on.

This course is intended for users with a strong working

knowledge of the Mechanical APDL program (including the

APDL Command Language) and the Fortran programming

language.

2011 ANSYS, Inc. March 11, 20133

Course objective

The main objective of this course is to provide the users with

the information needed to independently implement their

own features into the ANSYS program as well as to show how

to access very advanced functionalities.

This course is not a materials science course nor is it a course

on finite elements/structural mechanics. Also, lectures on

Fortran programming are not included either. It is assumed

that the reader will be adequately familiar with the topics

discussed to make good engineering judgments.

Much of the discussion will be brief, general, and simplified

in nature. When possible, references for further reading will

be presented, and users are strongly encouraged to refer to

these for detailed information.

2011 ANSYS, Inc. March 11, 20134

Topics covered

Below is the list of the topics covered in this course:

Compiling and linking UPFs using different methods

Strategy to program and test UPFs

Implementing an elasto-plastic model

Implementing a hyperelastic model

Implementing a creep model

Implementing a brick and a quad element

Implementing a new contact interfacial behavior