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

Stress distribution on the cross section of a beam with plasticity

Status
Not open for further replies.

Mary Madeleine

Computer
Joined
Jan 15, 2018
Messages
2
Location
RU
Hello everyone

I'm modeling 1D beam (B31H) with circle cross section, loaded by torque (its value is enough to cause plastic strain). The material is elasto-plastic with 530 MPa yield stress (306 MPa shear yield stress).
Looking through the results I see, that S->S12 gives me exactly 306 MPa, but shows no distribution (blue model). If I choose, for example, BEAM_STRESS->S12, I get 358 MPa, and BEAM_STRESS->Mises gives me 620 MPa. Both of these values exceed corresponding yield stress, and also, BEAM_STRESS shows linear stress distribution, which is not correct due to theory.

Can you please explain me, how to display the results correctly and also get distribution of shear or principal stress on the cross section of a beam?

 
 https://files.engineering.com/getfile.aspx?folder=891628a8-2afc-4fd5-ae3e-60e28f5adbd8&file=1.PNG
Don't look at the contour plot of the cross section. This is just a simplified visualization. Look at the results of the section points directly.
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top