کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9703931 | 1463867 | 2005 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A probabilistic damage model for acrylic cements. Application to the life prediction of cemented hip implants
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this paper, we propose a new model to predict the reliability function of the fatigue life of the cement of cemented hip implants. With this purpose, we compute the first moments of the relevant mechanical variables, using probabilistic finite elements (PFEM) and construct a B model to follow the evolution of the cumulative damage process. Two families of random variables have been considered, the muscle and joint contact forces at the hip associated to different activities (walking, stair climbing and a combination of both) and the fatigue material properties of the cement. This model predicts similar failure probability results to those observed experimentally. Its application to the Exeter Total Hip Replacement predicts areas of high damage very similar to those observed in clinical tests, allowing us to predict the failure probability (reliability) of the cement under cyclic loads with enough accuracy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Fatigue - Volume 27, Issue 8, August 2005, Pages 891-904
Journal: International Journal of Fatigue - Volume 27, Issue 8, August 2005, Pages 891-904
نویسندگان
J. Grasa, M.A. Pérez, J.A. Bea, J.M. GarcÃa-Aznar, M. Doblaré,