Which version do you using? NEi Nastran has supported CWELD elements since 2003. Also, Automated Surface Contact Generation (ASCG) is a good option for finding the solution.
With Femap covering pre- and postprocessing for NEi Nastran, what to do when you’re creating contact segments is first pick the front faces for one side of the contact and then the back faces for the other side of the contact. This reverses the node order on the BSSEG for the back side of the...
When MPC equations are generated internally in NEi Nastran there’s a default set id of 0. The 0 set is always run with every subcase, but that set id causes issues for Femap. Until Femap fixed their program, you get around it by changing the set id to something else (like 1) to ensure the...
NASTRAN can do, but NEi Nastran does much more.
In NEi Nastran the GLUE surface-to-surface contact is also handled by the Solver, which takes care of glue stiffness definition automatically. This is done at the Solver level with a PARAM or command.
Glue is a simple and effective method to...
Use offset weld type. The properties it needs to glue the parts together are determined automatically. It is easy to control bond stiffness using the SFACT value on the property, where 1.0 is full stiffness. It’s always good to make a simple test case to check your concept.
To check...
