Necking at two different place on the tensile specimen

- May 5, 2020 at 6:00 pm
  
  Praveen95
  Subscriber
  
  Hello,
  
  I have a stress-strain curve determined experimentally. I referred to one of the previous posts and converted engineering to true stress and strains and effectively found the plastic strains and corresponding true stresses. I also imported them in the Multilinear kinematic hardening model starting from 0 strain in Ansys WB static structural. I later conducted a tensile test simulation. I have created remote point at the end surfaces and one remote point is given zero displacement and other with some displacement
  
  I want to have the necking in the middle. But currently, I am having it as shown in the figure.
  
  Please help me how to solve this.
  
  Thanks in advance
  
  Best Regards
  Praveen
- May 5, 2020 at 10:32 pm
  
  peteroznewman
  Subscriber
  
  Use a coupon shape with large radius on each side of the width so the narrowest part is at the center.
- May 6, 2020 at 12:38 pm
  
  Praveen95
  Subscriber
  
  Dear Peter,
  
  Thank you very much. It worked.
  
  Best Regards
  
  Praveen