Stress Analysis Flashcards

Which contact type joins two touching faces so they act as one solid with no relative movement?

Answer: Bonded

Bonded contact holds the faces together in every direction.

Which contact type lets faces slide along each other but never pull apart?

Answer: Sliding / No Separation

Sliding / No Separation allows tangential sliding while keeping the faces touching.

Which contact type would you use to model an interference fit between a pin and a hole?

Answer: Shrink Fit / No Sliding

Shrink Fit contacts handle the overlap between interfering parts and the pressure it creates.

Which contact type uses normal and tangential stiffness values to join two faces?

Answer: Spring

Spring contact connects faces using user-defined normal and tangential stiffness.

In an assembly simulation, what does the Automatic Contacts command do?

Answer: Creates contacts between faces that touch within the set tolerance

Automatic Contacts finds touching faces within the tolerance and assigns the default contact type.

A nonlinear contact type such as Separation has which effect on the solve?

Answer: It needs an iterative solve, which can take longer

Separation-type contacts are nonlinear and need iterative solving, so they increase solve time.

How can you leave a fastener out of a stress study without deleting it from the assembly?

Answer: Use Exclude from Simulation

Exclude from Simulation removes the component from the study and leaves the assembly unchanged.