@Article{cmc.2020.09393,
AUTHOR = {Hossein Bisheh, Yunhua Luo, Timon Rabczuk},
TITLE = {Hip Fracture Risk Assessment Based on Different Failure Criteria  Using QCT-Based Finite Element Modeling},
JOURNAL = {Computers, Materials \& Continua},
VOLUME = {63},
YEAR = {2020},
NUMBER = {2},
PAGES = {567--591},
URL = {http://www.techscience.com/cmc/v63n2/38530},
ISSN = {1546-2226},
ABSTRACT = {Precise evaluation of hip fracture risk leads to reduce hip fracture occurrence 
in individuals and assist to check the effect of a treatment. A subject-specific QCT-based 
finite element model is introduced to evaluate hip fracture risk using the strain energy, 
von-Mises stress, and von-Mises strain criteria during the single-leg stance and the 
sideways fall configurations. Choosing a proper failure criterion in hip fracture risk 
assessment is very important. The aim of this study is to define hip fracture risk index 
using the strain energy, von Mises stress, and von Mises strain criteria and compare the 
calculated fracture risk indices using these criteria at the critical regions of the femur. It is 
found that based on these criteria, the hip fracture risk at the femoral neck and the 
intertrochanteric region is higher than other parts of the femur, probably due to the larger 
amount of cancellous bone in these regions. The study results also show that the strain 
energy criterion gives more reasonable assessment of hip fracture risk based on the bone 
failure mechanism and the von-Mises strain criterion is more conservative than two other 
criteria and leads to higher estimate of hip fracture risk indices.},
DOI = {10.32604/cmc.2020.09393}
}