Creo Simulate > Modeling Structure and Thermal Problems > Idealizations > About Idealizations
  
About Idealizations
You create idealizations to represent your model with a set of elements that simplifies the actual design, resulting in a faster simulation. Idealizations are a means of fine-tuning the design of your model.
Creo Simulate provides these idealizations:
Beams
Springs (Structure only)
Masses (Structure only)
Shells
Cracks