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Hi all,

Assume a cantilever beam fixed to a wall. We let the beam bend under its own weight. In practice the bending could be significant and as the bar bends, the distance between the tip of the bar and the walldecreases.

Now my question are:

1. Can this bending be modeled numerically ( finite element method) using linear elasticity?

2. They say linear elasticity is for small deformation. Does it mean that a large bending can't be modeled by methods based on linear elasticity?

The figure shows the result from my code which is based on linear elasticity. It's not what I expected as the bar stretches as it bends so that the distance between the tip and the wall remains the same.

P.S: Does anyone know of any active forum on numerical methods such as finite element ? I'm particularly interested in structural analysis as well as electromegnetics as my research is about coupled magneto-mechanical problems.

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# Structural Analysis- small deformation

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