Deflection of a Nonlinear Elastic Cantilever Beam

Description

Determine the deflection of a cantilever beam under a torque applied to its free end. The beam has a length of 100" and a rectangular cross section of dimensions 2"X1".

The material is nonlinear elastic (defined by a stress-strain curve).

File Name

Browse to drive letter:\Users\Public\Public Documents\SOLIDWORKS\SOLIDWORKS version\samples\Simulation Examples\Verification\Nonlinear_Static_6.SLDPRT and open the file.

Study Type

Nonlinear.

Mesh Type

Solid mesh.

Material Model

Nonlinear elastic. The material has the following stress-strain curve:
Stress (psi) Strain
0 0
3E3 0.001
60.003E6 2.001


Material Properties

Poisson's ratio = 0.

Restraints and Loads

The bar is fixed at one end and a torque is applied at the other end as follows:

Results

Deflection at free end (inch) Linear elasticity range (Torque = 2000 lb-in) Nonlinear elasticity range (Torque = 7000 lb-in)
Theory -4.9998 -7.5156
SOLIDWORKS Simulation -4.9738 -7.437

The theoretical solution is based on thin beam theory.