scholarly journals Effects of osteoporosis on bone morphometry and material properties of individual human trabeculae in the femoral head

JBMR Plus ◽  
2021 ◽  
Author(s):  
Martin Frank ◽  
Andreas G. Reisinger ◽  
Dieter H. Pahr ◽  
Philipp J. Thurner
1990 ◽  
Vol 38 (4) ◽  
pp. 1426-1430
Author(s):  
Toshiyuki Kumashiro ◽  
Satoshi Kanemitsu ◽  
Katsuaki Kitano ◽  
Toshiaki Haza ◽  
Katsuro Iwasaki ◽  
...  

2016 ◽  
Vol 16 (08) ◽  
pp. 1640013 ◽  
Author(s):  
MONAN WANG

In this study, the optimized structure of a femoral prosthesis for a patient was determined by biomechanical analysis, and the materials that match the model of the prosthesis were determined by multi-objective comprehensive evaluation using a fuzzy matter-element method. The suitable material for the ellipsoidal femoral head of the prosthesis was determined to be a carbon-fiber-enhanced polyether-ketone (CF/PEK) composite, and that for the stem was determined to be a zirconium–niobium alloy (Zr–Nb alloy). The study successfully demonstrated the potential of the developed method for use in selecting the best structure and materials for fabricating a customized prosthesis.


2016 ◽  
Vol 35 (7) ◽  
pp. 1453-1460 ◽  
Author(s):  
Olumide O. Aruwajoye ◽  
Pranesh B. Aswath ◽  
Harry K. W. Kim

2002 ◽  
Vol 71 (3) ◽  
pp. 227-234 ◽  
Author(s):  
S.J. Brown ◽  
P. Pollintine ◽  
D.E. Powell ◽  
M.W.J. Davie ◽  
C.A. Sharp

2015 ◽  
Vol 801 ◽  
pp. 273-277
Author(s):  
Karla Noemy Kun ◽  
Lorand Kun ◽  
Ramona Nagy ◽  
Karoly Menyhardt ◽  
Dana Silaghi-Perju ◽  
...  

This work presents an experimental program to determine the mechanical properties of cancellous bone in the femoral head as a function of location. To achieve this several specimens of cancellous bone of approximately 10 mm height and 10 mm diameter were obtained from one human femoral head, starting the sampling from its main loading compressive direction. All specimens underwent compression testing in order to determine the mechanical properties of each specimen and thus a properties map of the cancellous bone in the femoral head was obtained. Based on the results a parametric file with material properties was created in order to be used by professionals in finite element analysis programs.


2008 ◽  
Vol 23 ◽  
pp. S39-S47 ◽  
Author(s):  
Shih-Sheng Sun ◽  
Hsiao-Li Ma ◽  
Chien-Lin Liu ◽  
Chang-Hung Huang ◽  
Cheng-Kung Cheng ◽  
...  

Author(s):  
C.L. Briant

Grain boundary segregation is the process by which solute elements in a material diffuse to the grain boundaries, become trapped there, and increase their local concentration at the boundary over that in the bulk. As a result of this process this local concentration of the segregant at the grain boundary can be many orders of magnitude greater than the bulk concentration of the segregant. The importance of this problem lies in the fact that grain boundary segregation can affect many material properties such as fracture, corrosion, and grain growth.One of the best ways to study grain boundary segregation is with Auger electron spectroscopy. This spectroscopy is an extremely surface sensitive technique. When it is used to study grain boundary segregation the sample must first be fractured intergranularly in the high vacuum spectrometer. This fracture surface is then the one that is analyzed. The development of scanning Auger spectrometers have allowed researchers to first image the fracture surface that is created and then to perform analyses on individual grain boundaries.


Author(s):  
Brian Ralph ◽  
Barlow Claire ◽  
Nicola Ecob

This brief review seeks to summarize some of the main property changes which may be induced by altering the grain structure of materials. Where appropriate an interpretation is given of these changes in terms of current theories of grain boundary structure, and some examples from current studies are presented at the end of this paper.


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