How to use 2D shell element to simulate thick shell in OptiStruct

 I don't think  using solid element is a good method if the 1/6<thickness/length<1/3 

For what type of part you wanted to use thick shell formulation?

You can use  Pshell in large thickness shell applications and nothing bad will happen.

See attached screensot.

Regards

Rahul R 

<?xml version="1.0" encoding="UTF-8"?>

Thank you Rahul! I just want to compare OS with other softwares like abaqus. Abaqus have different types of element(property) for thin and thick shell. 

Do you mean that we can only use pshell for both thin and thick shell??

Abaqus have different types of element(property) for thin and thick shell. 

Hi HuangZhou,

If you are interested you can try TSHELL in RADIOSS which is a thick shell element.