This online training session is scheduled as 4x2hr sessions over the 22nd and 24th March, 2021.

Total duration: 12 hours

This advanced course covers all aspects of Structural Nonlinearities for FEA, including nonlinear contact definition, material plasticity, hyperelasticity, and provides users with the skills to perform non-linear analyses on complex CAD assemblies.

Full course outline details are outlined below – to register your interest in participating in this training course, please complete this form.

Session 1 – 2 hours
Non-linear Overview

• What is non-linear behaviour?
• Types of nonlinearities
• Non-linear Solutions using linear solvers
• General Nonlinear Issues

General Nonlinear Procedures

• Building a Non-linear Model
• Obtaining Nonlinear Solution
• Mesh Considerations
• Loads
• Solver Controls
• Large Deflection

Restart Controls

• Restart Use
• Generate Restart Points
• Retain Restart Points
• Viewing and Using Restart Points
• Modifications Affecting Restart Points

Session 2 – 2 hours
Introduction to Contact

• Definitions
• Formulations
• Stiffness and Penetration
• Pinball
• Symmetric vs. Asymmetric
• Contact Results

Advanced Contact

• General Review of Contact Technology
• Auto Contact Detection Options
• Using the Contact Tool
• Joints, Springs and Beams
• Spot Welds
• Connections Worksheet

Interference Fit

• Rigid Body Motion
• Contact Surface Offset
• Contact Stabilisation Damping
• MPC Interface Options
• Time Step Controls
• Friction

Session 3 – 2 hours
Non-linear Diagnostics

• Solution Information
• Monitoring the Solution
• Newton-Raphson Residuals
• Example Cases
• Tips on Solving the Model

Metal Plasticity

• Overview
• Yield Criteria
• Hardening Rules
• Material Data Input
• Analysis Settings and Reviewing Results

Hyperelasticity

• Background on Elastomers
• Background on Hyperelasticity
• Mixed u-P Formulation
• Curve-Fitting
• Analysis Settings

Session 4 – 2 hours
Bolt Pretension

• Background
• Define By Options
• Application Notes
• Joint Technology Option
• Bolt Thread Modeling

Buckling and Linear Perturbation

• Background
• Perturbation Analysis
• Eigenvalue Buckling Procedure
• Linear Based Eigenvalue Buckling
• Nonlinear Based Eigenvalue Buckling
• Load Control
• Displacement Control
• Dynamics
• Non-linear Stabilisation