Abstract
The structural adaptation of a three-dimensional finite element
model ofthe proximal femur is considered. Presuming the bone
possesses the optimalstructure under the given loads, the bone
material distribution is foundby minimizing the strain energy
averaged over ten load cases with avolume constraint. Theoptimized
design is used as a start-configuration for the
remodelingsimulation.The parameter characterizing the equilibrium
level where no remodeling occurs is estimated from the
optimization parameters.The loads vary in magnitude, location and
direction simulating timedependent loading. The remodeling
algorithm is derived directly from theoptimization recurrence
formula, and in a time increment the materialdistribution changes
towards the optimal structure for the present load case.The speed
of remodeling is taken from clinical data.Numerical examples of
respectively increasing and reducing the jointforces are given.
| Original language | English |
|---|---|
| Title of host publication | Synthesis in Bio Solid Mechancis |
| Place of Publication | Lyngby |
| Publication date | 1998 |
| Pages | 333-348 |
| Publication status | Published - 1998 |
| Event | Synthesis in Bio Solid Mechanics - Lyngby Duration: 1 Jan 1998 → … |
Conference
| Conference | Synthesis in Bio Solid Mechanics |
|---|---|
| City | Lyngby |
| Period | 01/01/1998 → … |