time increment error
time increment error
(OP)
Hello,
Am trying to get displacement results of a plate by using static step with nonlinear and applying point load near the end of plate and other end is fixed.
The point load should be 15.3376 Newtons in negative Z direction but when I apply it fully by setting amplitude too it shows time increment error so I reduced to 11.3376 N and it worked then I increased to 12.3376 N too it shows the same time increment error like before saying too many attempts made for this increment even when I apply load slowly by setting in amplitude .I even tried splitting into two steps and applied still did not work. Am I applying plastic strain values wrong? i have attached image for detail description. See it and help me
Am trying to get displacement results of a plate by using static step with nonlinear and applying point load near the end of plate and other end is fixed.
The point load should be 15.3376 Newtons in negative Z direction but when I apply it fully by setting amplitude too it shows time increment error so I reduced to 11.3376 N and it worked then I increased to 12.3376 N too it shows the same time increment error like before saying too many attempts made for this increment even when I apply load slowly by setting in amplitude .I even tried splitting into two steps and applied still did not work. Am I applying plastic strain values wrong? i have attached image for detail description. See it and help me





RE: time increment error
RE: time increment error
RE: time increment error
With a nondecreasing curve, after the highest stress value in the plasticity table, the behavior is perfect plastic. So same issue here - with increasing load the stress can't increase, which prevents finding an equilibrium.
You have to make sure that the stresses in your plastic data are higher than the stresses that are reached in the analysis.
If you want to have damage in your material, you have to use damage initiation and damage behavior. Or other damaga and failure methods.
RE: time increment error
RE: time increment error
Is NLGEOM active? Is the shell thickness correct? Check everything that can effect the results.
RE: time increment error
Try distributing the point load over a larger area, or make a small region surrounding the load elastic material so it doesn't yield.