Question
What does negative/positive sign in structural elements represent in GTS NX?
Answer
In GTS NX, for beam the positive results indicate tensile forces and negative results indicate compressive forces.
Shear Force Variation
For the case of beam elements, the hogging bending moment is shown in positive while the sagging movement is shown in negative value. For the shell elements the results are shown based on material coordinate system.
Bending Moment Variation