Creo Simulate Day 2, Assembly

Connecting Rod

Overview: Download the linked model below and use Creo Simulate to determine the safety factor of the part. This steel connecting rod experiences a 2,000-lb load in both tension and compression.

Reminder:

• The yield strength of high strength steel is approximately 100 ksi

Explore: Update the geometry so the safety factor becomes 2.0.

Model: Connecting Rod Part

Hint: Here’s a screenshot of a typical stress plot of a connecting rod under tension.

• How do the boundary conditions change between the compression and tension load cases?
• Does the mesh strategy change between each load case?
• Where are the areas of high stress? Is this realistic?

• Try:
  • Analyze the connecting rod as part of an assembly
  • Further your investigation of the ‘tension’ load case with the linked model below

  Discuss: The capabilities and limitations of simulating contact in Creo Simulate.

  Model: Connecting Rod Assembly

• Simplify the Model:
  • Replace the stud/nut pair with the fastener feature and compare the results
  • Is the deflection identical?
  • Are the stresses identical?

   

• More info on the Fastener Feature:
  • About PTC Creo Fasteners
  • Using Fasteners to Connect Solids
  • Best Practice: Using Fasteners in Creo Simulate
  • Timoshenko Beam Theory