OHDA's finite element calculations are linear.
Buckling is usually associated with non-linear finite element. However we do have an axial loading check.
Thanks for the heads up Kevin.
Thank you for your attention Kevin and Shaun;
Any plans to move forward to Non-linear calculations in future versions of OHDA??
We expect the new CSA 2014 22.3 1-10 Overhead Systems will mandate non-linear calculations for wood pole stuctures, however, nobody seems to know for sure..
Excerp from CSA 22.3 1-10 2010:
"This edition of CSA C22.3 No. 1 covers both the linear and non-linear design methods for wood pole
structures, with non-linear design being the preferred method. Non-linear design was first recognized as
the preferred method in this Standard in a 2003 amendment to the 2001 edition. In the future, the
non-linear method will be the sole method; the linear design method is retained in this edition of the
Standard to facilitate the transition."
"Non-linear analysis, including stability (buckling) check, is the method of analysis of wood structures
that should be used. Linear analysis of wood pole structures continues to be utilized in some jurisdictions
in accordance with historical utility practice and remains an option for users during a period of transition
to non-linear analysis."