Hot Forming with LS-DYNA

In this course, participants are taught the basics of thermal and thermo-mechanically coupled simulations using LS-DYNA. In addition, the definition and basic forms of heat transfer will be reviewed. Due to its increasing relevance, special attention will be drawn on the application of thermal and coupled simulations of hot and cold forming processes. Among other things, the available material models will be described covering plasticity, viscoplasticity, anisotropy, and structural transformation of steel. Besides the modeling methods of the main physical effects, a focus is placed on illustrating an efficient modeling techniques that are adapted to the calculation task at hand.

Contents

• Basics of thermal computations
• Linear and nonlinear simulations
• Heat transfer during contact
• Thermomechanical coupling in LS-DYNA
• Material models for coupled calculations
• Temperature-dependent elasticity, viscoplasticity and anisotropy
• Thermomechanically coupled forming simulation
• Incorporate microstructural transformations during hot forming
• Calculation of the cooling or warming of hot forming tools
• Special applications in process simulation
• Localized heat treatment of aluminum components
  
  • Heating by welding,
  • Induction heating, etc.