Help with mat054
Ansys / LS-DYNA Help Forum
Last Post by Negative Volume 2 years ago
December 24, 2020 7:15 am
Good day, guys!
Got a very strange problem. I am solving some simple along fiber tensile problems for composite.
Almost all of them (34 of 35) were solved ok, except 1 (so the problem i suppose in material card, but why)
This material fails before stress riches XT (xt=518Mpa, fail on 350-400Mpa). why that can be and how to fix this?
attach the file
December 26, 2020 9:37 am
The problem is timestep defined in control - implicit auto. According to logs it falls below DTMIN. But no idea why.
Maybe the problem is with convergence, but no idea how to fix this.
How can i fix this?