Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

  • Congratulations TugboatEng on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

FEA Question

Status
Not open for further replies.

ccamp

Mechanical
Joined
Aug 4, 2003
Messages
2
Location
US
In looking at stresses on a plastic material in FEA, do you use the von mises or max principal as your stress criteria?
 
Do you mean plastic in the sense of an organic material, or do you mean a material in a plastic condition ? If its the former, and exhibits brittle failure, I would say Max. Principal. If it exhibits ductile failure, I would say Von Mises. Both types of failure can occur with plastics, but don't ask me which ones occur with which materials and conditions of loading.
 
Suggest you post in an FEA Forum. There are several.
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top