In patients with severe damage to the hip joints, hip prostheses are used as a result of replacing the damaged joint as an artificial joint. The hip prosthesis consists of main parts made of cobalt chrome or titanium and plastic, metal or ceramic spacers where they join. It is known that there are many design problems related to hip prostheses and their applications. With the aim of solving these problems, three different types of design geometry with industrial design were selected and modeled with the Catia V5 program. Considering the forces affecting the assembly design of these prostheses and femur, the safety coefficient values were calculated under engineering stress in the finite element method. Considering these calculations, among three different industrial designs, the design type whose volume ratio is low and the stress amount is lower than the other designs was determined. It has been observed that this design can be modeled with a loft design tool that includes 6 different sections. The size variation of the profiles in these sections is modeled by making 1 mm offset from the main design geometry. Taguchi L8 experimental design was used for this modeling. Thus, the effect of each section on the strength and volume properties has been analyzed using statistical methods. The volume of these prostheses designed with reverse engineering varies between 31285 and 18438 mm3. Necessary design choices were made by taking these results into consideration in order to obtain minimum volume and maximum safety coefficient. Experimental design parameters for the minimum design were determined as A2, B1, C1, D2, E1, F1. According to these results, the volume was found to be 17975mm3 and the maximum stress on the body as 774 MPa. Thus, the volume amount was reduced by 4%, while the safety factor was increased by 8%. Considering these results, the maximum safety has been obtained for the minimum amount of volume.
|Supporting Institution||Bilecik Şeyh Edebali Üniversitesi|
|Thanks||Bu çalışma, Bilecik Şeyh Edebali Üniversitesi Bilimsel Araştırma Projeleri Komisyonu tarafından desteklenen 2018-01.BŞEÜ.03-04 numaralı proje kapsamında yürütülmüştür. Yazarlar, Bilecik Şeyh Edebali Üniversitesine mali desteklerinden dolayı teşekkür etmektedir|
: March 20, 2020
|APA||Küçük, Ö , Öztürk, B . (2020). Kalça Protezlerinde Loft Tasarım Aracı Kesit Değişimlerinin Gerilme Miktarı Üzerine Etkilerinin İncelenmesi . Bilecik Şeyh Edebali Üniversitesi Fen Bilimleri Dergisi , 7 (2) , 837-849 . DOI: 10.35193/bseufbd.706661|