Training

NAFEMS currently offers an e-learning course related to composites. The e-learning course runs over a four week period with a single two hour session per week. The following topics are covered:

Session 1

• Finite Element Analysis Overview

• FEA Basic Principals

• Introduction to composite systems

• Strength and Stiffness of plies

• Comparison with published data or test results

• 2D shell stress strain relationship - Classical Laminate Theory

• Ply angle effect

• Simulation of single ply using FEA

• Sandwich structures and failure modes

• Workshops

Session 2

• Multi ply layups – evaluation of stiffness

• A B D matrix terms and their importance in design and analysis

• Interlaminar shear stresses

• FEA model simulations of varying layups

• Symmetric and balanced layups

• Special types of Layup

• Failure criteria

• Handling large amounts of output data

• Strength assessment

• Workshops

Session 3

• Practical composite modeling

• Inner or outer mold line considerations

• Ply drop off, draping effects

• Edge effects and stress raisers such as holes

• Plane stress modeling

• 3D element background and application

• Workshops

Session 4

• More 3d situations, delamination effects

• Comparison of 2D shell and solid element solutions

• Advanced failure methods

• Progressive ply failure methods

• Virtual Crack Closure methods in delamination

• Workshops

Further details can be found at e-learning.