Section 3: Nonlinear Material Analysis

This section contains 6 modules that present the theory, numerical methods, and modeling techniques used to analyze mechanical systems containing non-linear materials. Elastic-plastic, hyperelastic, and viscoelastic materials are covered in both static and dynamic load environments.

Prerequisite: This section assumes that the user has viewed the videos and studied Section 2: Linear Material Analysis.

Autodesk® Simulation Multiphysics software is used to demonstrate how to set up and perform various types of analyses.

Module 1: Overview

This module provides an overview of the nonlinear material models contained in Autodesk Simulation Multiphysics software. It also discusses other nonlinear phenomena such as large displacements and/or rotations, stress stiffening or softening, and intermittent boundary conditions.

Module 2: Elastic-plastic Material Analysis

This module provides an introduction to elastic-plastic material constitutive equations used to model metals. It presents concepts associated with yield criteria, isotropic and kinematic hardening, and modeling techniques.

Module 3: Hyperelastic Materials

This module provides an introduction to hyperelastic material constitutive equations used to model polymers and biological materials. It presents concepts associated with finite deformation necessary to define the volumetric and deviatoric response.

Module 4: Viscoelastic Materials

This module provides an introduction to viscoelastic material constitutive equations. It presents methods for defining the relaxation properties based on Prony series data.

Module 5: Riks Analysis

This module provides an introduction to Riks based analysis methods used to define the onset and post-buckling response of mechanical systems. It discusses the relationship between load increments and displacement constrained solution methods.

Module 6: Impact

This module introduces techniques for modeling contacts between components within a system. It discusses techniques and options associated with modeling surfaces that allow separation during the analysis.

Videos