Jul 7, 2009

# Buckling Load Factor – FEA Interpretations

Interpretation of Buckling Load Factor can be explained through an example. Say we have got a buckling load factor as 3.20 for a beam with load 100N for a mode 1 buckling analysis. Then we can say that buckling will occur at 3.2 x 100 = 320N, and its called the critical buckling load. The buckling load factor multiplied by the applied load yields the buckling load. Follow the following chart for further interpretation of  BLF

## 1 < BLF : Buckling not predicted

The applied loads are less than the estimated critical loads. Buckling is not expected..

## 0 < BLF < 1 : Buckling predicted

The applied loads exceed the estimated critical loads. Buckling is expected.

## BLF = 1 : Buckling predicted

The applied loads are exactly equal to the estimated critical loads. Buckling is expected.

## BLF = –1 : Buckling not predicted

The model is in tension and buckling is not expected.

## -1 < BLF < 0 : Buckling not predicted

Buckling is predicted if you reverse all loads.

## BLF < –1 : Buckling not predicted

Buckling is not expected even if you reverse all loads.

Reference:- SolidWorks 2007 Help, Pro/Engineer Wildfire 5.0 Help, Creo Elements Pro Help

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