Finite-Element Modelling of Nonlinear Behaviour of the Middle Ear (28 of 41)

Next

Finite-Element Modelling of<br> Nonlinear Behaviour of the Middle Ear

1. Outline

2. Nonlinear behaviour of the middle ear

2. Nonlinear behaviour of the middle ear (cont'd)

2. Nonlinear behaviour of the middle ear (cont'd)

3.1 Stuhlman (1937)

3.2 Stuhmiller (1989)

3.3 Price & Kalb (1991)

3.4 Chen (1993)

3.5 Wada & Kobayashi (1990)

3.6 Pascal <em>et al.</em> (1998)

4.1 What?

4.2 Why?

4.3.1 Choice of element geometry

4.3.2.1 Type of problem

4.3.2.2 Assumptions about mechanical behaviour

4.3.2.3 Material laws

4.3.2.4 Methods for formulation

4.3.3 Mesh generation

4.3.4 Specification of material properties

4.3.5.1 Linear calculation of static responses

4.3.5.2 Natural frequencies and modes

4.3.5.3 Time-domain responses and frequency responses

4.3.6 Testing for convergence

5. Nonlinear finite-element modelling

5.1 Solution methods

5.1 Solution methods (cont'd)

28 of 41

6. Nonlinear behaviour of tissues

6. Nonlinear behaviour of tissues (cont'd)

6.1 Bone

6.2 Soft tissues

6.2.1 Hysteresis

6.2.2 Preconditioning

6.2.3 Rate dependence

6.2.4 Creep and relaxation

7. Example

7. Example (cont'd)

8.3 Free

9. Acknowledgements

10. References

5.2 Sources of nonlinearity

The nonlinearity may be due to

geometric effects: large strains, or small strains with large deformations
- nonlinear strain/displacement
- e.g., follower forces (e.g., pressures)
changes of boundary conditions (e.g., contact)
nonlinear material properties

Start

Next

Last modified: Mon, 2002 Jan 28 08:43:55
Slide show generated from d:\funnell\aro2002\nonlinear.html by Weasel 2002 Jan 28