Issue 15

D. Kytyr e

t alii, Frattura e

d Integrità Strut

turale, 15 (201

1) 5-13; DOI: 10

.3221/IGF-ESIS.

15.01

F

igure 5 : 10-no

de tetrahedral

elements mes

h.

Material Stainless s UHMWP Bone cem Trabecula

Youn

g’s modulus 220 0.69 2 0.850 roperties used

[GPa]

Poisson’s 0.30 0.46 0.38 0.25

ratio

teel E (ISO 5834 ent r bone Tabl

-2)

e 1 : Material p

in the FE mo

del.

Figure 6 : e stress field ximum stress rface are sh d steps consi crotomography observe the ging using a specimen a tware plug-in

Loading forc distribution value equal own in Fig. 8 dered. imaging process of d custom µCT nd the detec .

e used in the s in the bone to 12.48 MP . The places

imulation. -cement inte a was reache of maximal

F rface were o d at 20 % of value of von

igure 7 : Resul bserved to lo the gait cycle Mises stres

ting stress in t cate the reg . The stress s were in the

he bone-ceme ions of pote fields on the acetabular l

nt interface. ntial damage bone-cemen abrum for al

Th Ma inte loa Mi To ima the sof

. t l

amage in the device show tor were pr

acetabular re n in Fig. 9 ovided by st

gion during was perform epper motor

the loading m ed. Manipula s using a U

icrofocus C tion with the SB interface

omputed To X-ray sourc , controlled

mography (µ e, the table w by Pixelman

CT) ith [8]

9