training agenda

• Introduction to FEA using I-DEAS MasterFEM
• Introduction to Nastran
• Dynamic Analysis using MasterFEM and Nastran
• Nonlinear Analysis using Nastran and I-DEAS MasterFEM
• Practical Finite Element Analysis Techniques using Nastran and MasterFEM
• NAS106 - Nastran Superelement Analysis
• Miscellaneous MasterFEM: Optimization and Durability

Nonlinear Analysis using Nastran and I-DEAS MasterFEM

This training provides a working knowledge of the nonlinear capabilities of Nastran for static and dynamic analysis. Both geometric and material nonlinearity are discussed in detail. Nonlinear features of Nastran elements are explained and several examples are presented. Some practical guidelines for nonlinear analysis are also given. 3D contact problem solution will be covered using I-DEAS MasterFEM.

Relevance

This course will help to carry out nonlinear analysis using Nastran. Analyzing components that involves rubbers, plastics, etc. and that go through geometric nonlinearities will need Nonlinear analysis. Contact problems in Nastran will also need Nonlinear analysis.

Course Content

• Introduction
• Nonlinear static analysis strategies
  • Newton-Raphson method
  • Advancing schemes
  • Stiffness update schemes
  • Line search
  • Convergence and divergence
  • Restarts
• Geometric nonlinear analysis
  • Large rotations
  • Follower forces
• Linear and nonlinear buckling analysis
• Material types
  • Nonlinear elastic
  • Hyperelastic (Green elastic)
  • Elastoplastic
  • Creep
  • Temperature dependent
• Nonlinear elements
  • Small strain elements
  • Large strain elements
  • Contact (interface) elements
  • Gap
  • Slideline
• Nonlinear transient analysis
  • Integration schemes
  • Mass, damping, and load specification
  • Restarts

Prerequisites

• A basic knowledge of statics and strength of materials is highly recommended
• Introduction to FEM using I-DEAS MasterFEM and Nastran.

Time	Structure
3 days (2 days+ break+ 1 day)	50% lecture 30% tutorials 20% ongoing problems