Relationship between ultrasonic parameters and apparent trabecular bone elastic modulus: A numerical approach

2009 ◽  
Vol 42 (13) ◽  
pp. 2033-2039 ◽  
Author(s):  
G. Haïat ◽  
F. Padilla ◽  
M. Svrcekova ◽  
Y. Chevalier ◽  
D. Pahr ◽  
...  
Keyword(s):  
Elastic Modulus ◽  
Trabecular Bone ◽  
Numerical Approach ◽  
Ultrasonic Parameters ◽  
Bone Elastic Modulus

Fast and accurate specimen-specific simulation of trabecular bone elastic modulus using novel beam–shell finite element models

2011 ◽  
Vol 44 (8) ◽  
pp. 1566-1572 ◽  
Author(s):  
Jef Vanderoost ◽  
Siegfried V.N. Jaecques ◽  
Georges Van der Perre ◽  
Steven Boonen ◽  
Jan D'hooge ◽  
...  
Keyword(s):  
Finite Element ◽  
Elastic Modulus ◽  
Trabecular Bone ◽  
Finite Element Models ◽  
Shell Finite Element ◽  
Bone Elastic Modulus

A decreased subchondral trabecular bone tissue elastic modulus is associated with pre-arthritic cartilage damage

2001 ◽  
Vol 19 (5) ◽  
pp. 914-918 ◽  
Author(s):  
J. S. Day ◽  
M. Ding ◽  
J. C. van der Linden ◽  
I. Hvid ◽  
D. R. Sumner ◽  
...  
Keyword(s):  
Elastic Modulus ◽  
Trabecular Bone ◽  
Bone Tissue ◽  
Cartilage Damage ◽  
Trabecular Bone Tissue

A numerical approach to evaluation of elastic modulus using conical indenter with finite tip radius

2008 ◽  
Vol 23 (9) ◽  
pp. 2528-2537 ◽  
Author(s):  
Jin Haeng Lee ◽  
Hyungyil Lee ◽  
Deok Hoon Kim
Keyword(s):  
Elastic Modulus ◽  
Material Properties ◽  
Numerical Data ◽  
Maximum Error ◽  
Numerical Approach ◽  
The Self ◽  
Finite Element Analyses ◽  
Self Similarity ◽  
Tip Radius ◽  
Depth Curves

Geometrical self-similarity is a feature of mathematically sharp indenters such as conical and Berkovich indenters. However, self-similarity is considered inappropriate for practical use because of inevitable indenter tip blunting. In this study, we analyze the load–depth curves of conical indenters with various tip radii via finite element analyses. Based on the numerical data, we propose a method of restoring the Kick’s law coefficient C of finite tip-radius indenter to that of zero tip-radius indenter, thereby retaining the self-similarity of the sharp indenter. We then regress the unloading slope for the evaluation of elastic modulus in several ways. Finally, we establish a method to evaluate elastic modulus, which successfully provides the value of the elastic modulus with a maximum error of less than 5%, regardless of tip radius and material properties of both indenter and specimen.

Mechanical Properties of Porous Si3N4 Ceramics

2013 ◽  
Vol 586 ◽  
pp. 166-169 ◽  
Author(s):  
Monika Kašiarová ◽  
Zuzana Vilčeková ◽  
Katarína Bodišová ◽  
Magdaléna Domanická ◽  
Miroslav Hnatko ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Elastic Modulus ◽  
Silicon Nitride ◽  
Porous Silicon ◽  
Trabecular Bone ◽  
Porous Ceramics ◽  
Porous Si ◽  
Depth Sensing ◽  
Bone Material ◽  
Polyurethane Sponge

Mechanical properties of porous silicon nitride prepared by two different processing routes have been studied. Depth sensing methods was used to measure the hardness and elastic modulus of experimental materials. The results were compared with the hardness and elastic modulus of trabecular bone in order to find out porous ceramics with properties close to that of trabecular bone. Material prepared by infiltration of polyurethane sponge exhibited properties close to the properties of bone and it is the potential material for further investigation in the bioapplication field.

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