Course Prerequisites

Introduction to ANSYS 1 and 2 and the ANSYS Structural Nonlinearities courses or the equivalent.

Course Description

The objective of this course is for our course attendees to develop significant expertise in the use of ANSYS contact modeling capabilities over a wide range of applications. The first chapter of this course provides a comprehensive overview of ANSYS for modeling interaction among parts in assemblies. The remaining chapters deal exclusively with the ANSYS CONTACT 169-174 family of surface to surface contact elements. The course content includes detailed explanations of the various surface to surface contact types (standard, rough, no separation, bonded, no separation always, bonded always, and initial bonded contact) using animation sequences.

The course also includes 10 workshops in which the students use topics covered in the course to solve real-world problems. The workshop problems use the Contact Wizard to create the contact elements. Most of the problems are designed to not converge using the default ANSYS settings. When models do not converge, the course attendees use techniques presented in the course to get the problems to run. This course focuses on developing the skills to deal with the practical difficulties that ANSYS users encounter in solving contact problems.

Nonlinear contact workshops include 2D and 3D flexible-flexible contact, 2D rigid-flexible contact with pilot nodes, and 3D shell contact. Two of the problems use a Mooney-Rivlin constitutive model to represent hyperelastic materials. Special topics include:

• No Separation Always and Bonded Always contact options for holding parts together in a linear assembly model
• Pretension bolt elements
• Modeling of seals
• Thermal contact for conduction heat transfer in assemblies
• Real constants CNOF and ICONT to manipulate contact surface offsets
• Linear contact options in the development on nonlinear contact models
• Point to surface elements to handle point-to-surface and edge-to-surface initial contact

Approximately 50 % of the course time is devoted to hands on workshops done with coaching from the instructor.

Copyright 2005. DRD Technology Corporation.