Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

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

Convergence problem when including residual stresses

Status
Not open for further replies.

asxns19

Mechanical
Jun 26, 2017
2
Hi, I am modelling a simple plate structure and compressing it by applying an initial displacement to the master set tied to the left side of the plate using the equation constraint. When including the residual stresses by typing initial conditions, type stress, the error, 'time increment required is less than the minimum specified' arises. I am unsure how to solve this problem. I've attached an input file. Do help me!
 
 http://files.engineering.com/getfile.aspx?folder=fd421d17-bc6a-42d3-b7c7-7a34be5ce3c9&file=Plate1residual1.inp
Replies continue below

Recommended for you

1. What is the value of the displacement you want to apply finally? There is no limit defined.
2. Why are you using Riks?
 
@Mustaine3. I am investigating the ultimate strength of the steel plate. I was advised to use Static Riks. I tried using static general, but there is no buckling. Sorry, I am a beginner at this.
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor