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المؤلفMehboob, Hassan
المؤلفTarlochan, Faris
المؤلفMehboob, Ali
المؤلفChang, Seung-Hwan
المؤلفRamesh, S.
المؤلفHarun, Wan Sharuzi Wan
المؤلفKadirgama, Kumaran
تاريخ الإتاحة2023-01-26T07:03:28Z
تاريخ النشر2020
اسم المنشورJournal of Materials Science: Materials in Medicine
المصدرScopus
معرّف المصادر الموحدhttp://dx.doi.org/10.1007/s10856-020-06420-7
معرّف المصادر الموحدhttp://hdl.handle.net/10576/38886
الملخصThe current study is proposing a design envelope for porous Ti-6Al-4V alloy femoral stems to survive under fatigue loads. Numerical computational analysis of these stems with a body-centered-cube (BCC) structure is conducted in ABAQUS. Femoral stems without shell and with various outer dense shell thicknesses (0.5, 1.0, 1.5, and 2 mm) and inner cores (porosities of 90, 77, 63, 47, 30, and 18%) are analyzed. A design space (envelope) is derived by using stem stiffnesses close to that of the femur bone, maximum fatigue stresses of 0.3?ys in the porous part, and endurance limits of the dense part of the stems. The Soderberg approach is successfully employed to compute the factor of safety Nf > 1.1. Fully porous stems without dense shells are concluded to fail under fatigue load. It is thus safe to use the porous stems with a shell thickness of 1.5 and 2 mm for all porosities (18-90%), 1 mm shell with 18 and 30% porosities, and 0.5 mm shell with 18% porosity. The reduction in stress shielding was achieved by 28%. Porous stems incorporated BCC structures with dense shells and beads were successfully printed. [Figure not available: see fulltext.] 2020, The Author(s).
راعي المشروعThis paper was made possible by NPRP grant# NPRP 8-876-2-375 from the Qatar National Research Fund (a member of Qatar Foundation), and seed project # PSU-23-12-2019. The findings achieved herein are solely the responsibility of the authors. The authors would also like to thank Structures and Materials Research Lab at Prince Sultan University. Open Access funding provided by the Qatar National Library.
اللغةen
الناشرSpringer
الموضوع3D printers
Body-centered cubes (bcc)
Ti-6Al-4V alloy
femoral stem
العنوانA novel design, analysis and 3D printing of Ti-6Al-4V alloy bio-inspired porous femoral stem
النوعArticle
رقم العدد9
رقم المجلد31
dc.accessType Open Access


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