Abstract
An iterative procedure for the stress analysis at interfaces between dissimilar materials is presented. The problem is specialised to the case of biomaterial interfaces with particular reference to materials which are characterised by tiny microstructures. The procedure is based on a recursive analysis of small size problems defined upon subdomains obtained by partitioning the whole structural domain. The kinematic boundary conditions are iteratively adjusted by using appropriate preconditioners. The numerical example reported in this paper shows that the procedure is effective regardless of the degree of material heterogeneity, in contrast with the results obtained by using a coarse mesh for the whole domain. The procedure seems to be a promising one for determining the structural strength of interfaces between trabecular bone and metal implants requiring accurate evaluation of stress at the scale level of the single microstructure exhibited by the bone.
| Original language | English |
|---|---|
| Pages (from-to) | 431-439 |
| Number of pages | 9 |
| Journal | Meccanica |
| Volume | 37 |
| Issue number | 4-5 |
| DOIs | |
| Publication status | Published - 2002 |
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Keywords
- Finite elements
- Interface behaviour
- Iterative techniques
- Microstructures
- Multi-scale computing
ASJC Scopus subject areas
- Computational Mechanics
- Mechanics of Materials
Cite this
Micromechanical analysis of the trabecular bone stress state at the interface with metallic biomedical devices. / Vena, P.; Contro, R.
In: Meccanica, Vol. 37, No. 4-5, 2002, p. 431-439.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Micromechanical analysis of the trabecular bone stress state at the interface with metallic biomedical devices
AU - Vena, P.
AU - Contro, R.
PY - 2002
Y1 - 2002
N2 - An iterative procedure for the stress analysis at interfaces between dissimilar materials is presented. The problem is specialised to the case of biomaterial interfaces with particular reference to materials which are characterised by tiny microstructures. The procedure is based on a recursive analysis of small size problems defined upon subdomains obtained by partitioning the whole structural domain. The kinematic boundary conditions are iteratively adjusted by using appropriate preconditioners. The numerical example reported in this paper shows that the procedure is effective regardless of the degree of material heterogeneity, in contrast with the results obtained by using a coarse mesh for the whole domain. The procedure seems to be a promising one for determining the structural strength of interfaces between trabecular bone and metal implants requiring accurate evaluation of stress at the scale level of the single microstructure exhibited by the bone.
AB - An iterative procedure for the stress analysis at interfaces between dissimilar materials is presented. The problem is specialised to the case of biomaterial interfaces with particular reference to materials which are characterised by tiny microstructures. The procedure is based on a recursive analysis of small size problems defined upon subdomains obtained by partitioning the whole structural domain. The kinematic boundary conditions are iteratively adjusted by using appropriate preconditioners. The numerical example reported in this paper shows that the procedure is effective regardless of the degree of material heterogeneity, in contrast with the results obtained by using a coarse mesh for the whole domain. The procedure seems to be a promising one for determining the structural strength of interfaces between trabecular bone and metal implants requiring accurate evaluation of stress at the scale level of the single microstructure exhibited by the bone.
KW - Finite elements
KW - Interface behaviour
KW - Iterative techniques
KW - Microstructures
KW - Multi-scale computing
UR - http://www.scopus.com/inward/record.url?scp=0036437320&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0036437320&partnerID=8YFLogxK
U2 - 10.1023/A:1020852108109
DO - 10.1023/A:1020852108109
M3 - Article
AN - SCOPUS:0036437320
VL - 37
SP - 431
EP - 439
JO - Meccanica
JF - Meccanica
SN - 0025-6455
IS - 4-5
ER -