Tuesday, February 25, 2014

Online Euler Buckling Solver for Multiple Segment Axial Members

The subject online axial Euler buckling solver can determine the Euler buckling load for an axial member with up to 5 segments each with its own elastic modulus and area moment of inertia.  Boundary conditions of free, simple support, fixed slope and or elastic spring can be applied at the start and end of each segment.  The output includes the buckling load, maximum compression stress using the smallest input area and a slenderness ratio using the full length and smallest EA value.  The later two output parameters can be used to determine if Euler buckling is an adequate representation of the simulation.  Compression stress values approaching the material yield and low slenderness ratios suggest nonlinear buckling maybe more appropriate.

The calculator matches the classic Euler buckling equation Pcr = EI(π/KL)2 for simple-simple (K=1), fixed-fixed (K=0.5), simple-fixed (K=0.7) and fixed-free (K=2) end conditions.

An extended version of this calculator which also includes a nonlinear option can be found at www.xl4sim.com.

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