Nonlinear

# Nonlinear - MCE 561 Computational Methods in Solid...

This preview shows pages 1–3. Sign up to view the full content.

MCE 561 Computational Methods in Solid Mechanics Nonlinear Issues

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Nonlinear Material Behavior This is one of the most common forms of nonlinearity, and would include nonlinear elastic, plastic, and viscoelastic behavior. For thermal problems, a temperature dependent thermal conductivity will produce nonlinear equations. Large Deformation Theory (Geometric Nonlinearity) If a continuum body under study undergoes large finite deformations, the strain- displacement relations will become nonlinear. Also for structural mechanics problems under large deformations, the stiffness will change with deformation thus making the problem nonlinear. Buckling problems are also nonlinear. Nonlinear Boundary or Initial Conditions Problems involving contact mechanics normally include a boundary condition that depends on the deformation thereby producing a nonlinear formulation. Thermal problems involving melting or freezing (phase change) also include such nonlinear boundary conditions. Many problems of engineering interest involve nonlinear behavior.
This is the end of the preview. Sign up to access the rest of the document.

### Page1 / 9

Nonlinear - MCE 561 Computational Methods in Solid...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online