686x
004929
2021-02-05

Question

When calculating a cross-section in SHAPE‑THIN, I get the error message that Fy is not positive.


Answer:
Please define a yield strength and limit stresses in Window "1.2 Materials".


The yield strength is required to determine the plastic cross-section properties if the "Plastic cross-section properties" check box is selected in the General Data.


The limit stresses are required to compare the calculated stresses with the limit stresses.