Numerical Analysis on Fatigue Life Prediction of Cancellous Bone Respect to Normal Walking Loading
Year: 2015
Type: article
Abstract: Osteoporosis disease makes bone fragile and weak to withstand against load and bodyweight. Damage initiated depends on different morphological indices and angle of oriented trabeculae. Fatigue analysis performed in strain-based approach for bovine trabecular bone in three different cases respects to its morphological indices to investigate correlation between fatigue life and bone morphology. On-axis and off-axis load effects are considered to determine trabecular yielding which is a main cause of failure. Once load impose as on-axis on trabecular, fatigue failure occur in high cycles (> 12226), however, off-axis load, which may impose on trabecular with 45 degree or perpendicularly cause drastically decrease of trabecular life. The most failure occurs in arc and rod-like trabecular and S-N curve for axial compression load were performed based on CoffinManson equation. Results had shown that with 20.2% loss of volume fraction (BV/TV) and 15.8% loss of surface density (BS/TV) fatigue life of trabecular bone by axial compression load decrease to 63.6%.
Source: Jurnal MEKANIKAL
Institution: University of Technology Malaysia
Language: English
Subfield: Orthopedics and Sports Medicine
Field: Medicine
Domain: Health Sciences
Open Access status: diamond
OpenAlex ID: W2949375283