scholarly journals Correction to: Elastic, Viscoelastic and Fibril-Reinforced Poroelastic Material Properties of Healthy and Osteoarthritic Human Tibial Cartilage

2021 ◽  
Author(s):  
Mohammadhossein Ebrahimi ◽  
Simo Ojanen ◽  
Ali Mohammadi ◽  
Mikko A. Finnilä ◽  
Antti Joukainen ◽  
...  
Keyword(s):  
Material Properties ◽  
Tibial Cartilage ◽  
Poroelastic Material

scholarly journals Elastic, Viscoelastic and Fibril-Reinforced Poroelastic Material Properties of Healthy and Osteoarthritic Human Tibial Cartilage

2019 ◽  
Vol 47 (4) ◽  
pp. 953-966 ◽  
Author(s):  
Mohammadhossein Ebrahimi ◽  
Simo Ojanen ◽  
Ali Mohammadi ◽  
Mikko A. Finnilä ◽  
Antti Joukainen ◽  
...  
Keyword(s):  
Material Properties ◽  
Tibial Cartilage ◽  
Poroelastic Material

Characterization of the Poroelastic Material Properties of Skeletal Repair Tissues Using Microindentation

2011 ◽  
Author(s):  
M. M. Sperry ◽  
L. N. M. Hayward ◽  
G. J. Miller ◽  
E. F. Morgan
Keyword(s):  
Material Properties ◽  
Repair Process ◽  
The United States ◽  
Fracture Site ◽  
Fe Model ◽  
Fracture Callus ◽  
Repetitive Injury ◽  
Poroelastic Material ◽  
Mechanical Factors ◽  
Callus Tissues

Nearly 10% of the approximately six million fractures that occur each year in the United States do not heal, causing lasting pain and repetitive injury [1]. Although the causes of poor healing are unknown in many cases, the sensitivity of the repair process to mechanical factors is well established. In an effort to understand how mechanical factors such as axial and shear micromotion at the fracture site affect healing, prior studies have sought to characterize the local mechanical environment using finite element (FE) analysis (e.g., [2,3]). However, a key set of inputs for the FE analyses is the distribution of material properties of the various tissues that comprise the fracture callus. Recent studies using nano- and microindentation have estimated these properties by approximating the tissues as linear elastic [4,5]. As a next step in this line of inquiry, the overall goal of this study was to estimate the linear, poroelastic material properties of callus tissues. The specific objectives were: 1) to develop an FE model for use in simulating microindentation experiments; and 2) to compare the results of the simulation to experimental microindentation data in order to derive the mechanical properties of the healing tissues.

Grain boundary segregation in metals

1992 ◽  
Vol 50 (2) ◽  
pp. 1204-1205
Author(s):  
C.L. Briant
Keyword(s):  
Fracture Surface ◽  
Grain Boundary ◽  
Grain Boundaries ◽  
Material Properties ◽  
Electron Spectroscopy ◽  
High Vacuum ◽  
Boundary Segregation ◽  
Grain Boundary Segregation ◽  
Local Concentration ◽  
The One

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.

Relationships Between Grain Boundary Structure and Material Properties

1980 ◽  
Vol 38 ◽  
pp. 366-369
Author(s):  
Brian Ralph ◽  
Barlow Claire ◽  
Nicola Ecob
Keyword(s):  
Grain Boundary ◽  
Material Properties ◽  
Main Property ◽  
Grain Structure ◽  
Boundary Structure ◽  
Grain Boundary Structure ◽  
Property Changes

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.

Bone material properties as measured by Reference Point Indentation are low in subjects with acromegaly

2016 ◽  
Author(s):  
Frank Malgo ◽  
Neveen A T Hamdy ◽  
Alberto M Pereira ◽  
Nienke R Biermasz ◽  
Natasha M Appelman-Dijkstra
Keyword(s):  
Material Properties ◽  
Reference Point ◽  
Bone Material ◽  
Bone Material Properties ◽  
Reference Point Indentation
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