000014142 001__ 14142
000014142 005__ 20161115100142.0
000014142 04107 $$aeng
000014142 046__ $$k2016-08-21
000014142 100__ $$aWang, Yingjun
000014142 24500 $$aLattice hip implant design by multi-scale multi-constraint topology optimization

000014142 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000014142 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000014142 506__ $$arestricted
000014142 520__ $$2eng$$aBone resorption is one of the main issues that lead to aseptic loosening and revision surgery after total hip arthroplasty. One of the reasons for bone resorption is stress shielding caused by the prosthesis stiffness usually much higher than that of the bone tissue. To address this problem, we present a mechanically biocompatible hip implant that consists of a graded-density lattice material obtained via multi-scale multi-constraint topology optimization (TO). Asymptotic homogenization is used to deal with the multi-scale mechanics of the implant and a modified proportional TO is used to obtain the relative density distribution of the implant. The result shows that bone resorption for the optimized implant is only 9% of that of a fully solid titanium implant that is commonly used in current total hip arthroplasty.

000014142 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000014142 653__ $$a

000014142 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000014142 720__ $$aWang, Yingjun
000014142 8560_ $$ffischerc@itam.cas.cz
000014142 8564_ $$s199953$$uhttps://invenio.itam.cas.cz/record/14142/files/PO.MS06-1.12.50.pdf$$yOriginal version of the author's contribution as presented on CD,  page 400, code PO.MS06-1.12.50
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000014142 962__ $$r13812
000014142 980__ $$aPAPER