Model flies on the air
Ansys / LS-DYNA Help Forum
Last Post by Negative Volume 2 months ago
February 3, 2023 8:54 am
Hello, im new to Ls-dyna. I have made a structure to be tested against a blast load but when i run the simulation the model just flies into the air, what is the reason for this ? I have attached the file
February 3, 2023 10:48 pm
It looks like you have your gravity load curve flipped. It needs to be positive not negative, which I know seems backwards but it's just the way LS-Dyna handles global load direction. Below is a thread and I've also linked the dyna examples page.