Hello fellow researchers, 

I am working on dynamic loading of a simply supported beam (Using Split Hopkinson Pressure Bar SHPB). I use a elastoViscoplastic material model for my sample. After a period of time, LS-Dyna shows a warning message saying

*Warning 40042 

Plasticity algorithm did not converge for MAT_105 at time....

I had tried inducing initial timestep size qnd even changing the contact parameters from default to SOFT=2 in between the bars and my sample. Still i get the same message. 

I would be so nice of you if someone gives me an insight to this problem. 

Thankyou in advance

Regards, 

Aravind Rajan AYAGARA

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