I would like determine the buckling load factor for telescopic hydraulic cylinder.The cylinder is 15 meters long in its extended condition and the diameter is around 175 mm.Do I need to do the non linear buckling analysis for these dimensions?. I have done the linear buckling analysis for this problem and the buckling factor i got is less than 1 whir i was not expecting from the analysis. If I run the same simulation setup with non linear analysis with arc length method (Nonlinear Buckling),I am getting load factor of 7. Now My question is which one to to be considered to determine the buckling load factor of this cylinder??.
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