Metal forming

During the forming analysis I found that some elements in the blank became distorted. How can this problem be solved?

After the trimming process, some of the elements in the blank mesh have become distorted around the trim line. How can this be avoided?

Can I arbitrarily pick the nodes to constrain for a springback analysis?

Can you advise how to improve the speed in the forming analysis?

Can you explain the failure behaviors that occur in sheet metal forming?

Do I have an easier way to define the velocity curve?

Do I have to consider the thickness of the blank?

Do I have to consider the thickness of the rigid bodies?

Even if I include the card of *CONTROL_ADAPTIVE in my input deck, the blank is not adapted. How can I fix this problem?

How can I evaluate material formability for a new material?

How can I specify friction coefficient in the contact interface?

How can you add constraints for a springback analysis?

How can you evaluate the material formability under complexity deformation condition or multiple steps forming?

How do I choose the element type for the analysis of sheet metal stamping?

In LSDYNA, there are different elements available in the analysis of sheet metal stamping Would you please give me some advice on how to choose the proper element type?

How do I implement my own FLD in LSPOST?

How do I specify the draw bead force?

How do I use define draw bead in stamping analysis?

How do you perform a multiple step analysis?

How do you trim the blank after a forming analysis?

How do you use RIGID_BODY_STOPPER?

Use the card of *CONSTRAINED_RIGID_BODY_STOPPERSYou can constrain the displacement by specifying a negative value for LCMAX and LCMIN.How is seamless springback analysis done with LSDYNA?

How is the FLD obtained in LSPOST? What is the limitation of using this FLD?

How many levels of adaptive mesh do I need in my calculation?

How to do hydro forming analysis?

How to use non-smooth trimming?

I found that the number of adapted elements was too large when I performed a multi-stage forming analysis using adaptivity. Is there a way to avoid this problem?

I generated a dynain file after forming analysis. Additionally, I used DYNAFORM to trim the mesh, and did springback prediction. However, I found that the predicted springback is too small to be true. What is the problem?

I had no problem in running a forming job, however, when I used adaptive method, the contact does work properly even from the beginning without adaptivity. What is the problem?

I have no experience in springback prediction, and have no idea whether my prediction is reasonable. Do you have any idea how accurate the solution could be from LSDYNA?

I just have one IGES file for the part, and I don’t want to offset the surface for the punch and die physically. Is it possible to offset the two surfaces internally inside LSDYNA3D? If yes, how do you offset these two surfaces?