Evaluation of the fatigue defect population in an elastomer using X-ray computed micro-tomography

2010 ◽  
Vol 51 (7) ◽  
pp. 1253-1263 ◽  
Author(s):  
Vincent Le Saux ◽  
Yann Marco ◽  
Sylvain Calloch ◽  
Pierre Charrier
Keyword(s):  
X Ray ◽  
Fatigue Defect ◽  
X Ray Computed ◽  
Micro Tomography

A new species of anapid spider (Araneae: Araneoidea, Anapidae) in Eocene Baltic amber, imaged using phase contrast X-ray computed micro-tomography

Zootaxa ◽  
2011 ◽  
Vol 2742 (1) ◽  
pp. 60 ◽  
Author(s):  
DAVID PENNEY ◽  
ANDREW MCNEIL ◽  
DAVID I. GREEN ◽  
ROBERT BRADLEY ◽  
YURI M. MARUSIK ◽  
...  
Keyword(s):  
New Species ◽  
Phase Contrast ◽  
Baltic Amber ◽  
X Ray ◽  
The Family ◽  
X Ray Computed ◽  
Micro Tomography ◽  
The Baltic ◽  
A New Species ◽  
Eocene Amber

A new species of the extant spider family Anapidae is described from a fossil mature male in Eocene amber from the Baltic region and tentatively assigned to the genus Balticoroma Wunderlich, 2004. Phase contrast X-ray computed micro-tomography was used to reveal important features that were impossible to view using traditional microscopy. Balticoroma wheateri new species is easily diagnosed from all other anapids by having clypeal extensions that run parallel to the ectal surface of the chelicerae and in having the metatarsus of the first leg highly reduced and modified into what is presumably a y-shaped clasping structure. Although only a single extant anapid species occurs in northern Europe, the family was diverse in the Eocene. The discovery of yet another anapid species in Baltic amber supports the idea that Eocene European forests may have been a hotspot of evolution for this family of spiders.

scholarly journals Modelling particle scale leach kinetics based on X-ray computed micro-tomography images

2016 ◽  
Vol 162 ◽  
pp. 25-36 ◽  
Author(s):  
Q. Lin ◽  
D.J. Barker ◽  
K.J. Dobson ◽  
P.D. Lee ◽  
S.J. Neethling
Keyword(s):  
X Ray ◽  
X Ray Computed ◽  
Micro Tomography

X-ray computed micro-tomography to study the porous structure and degradation processes of a building stone from Sabucina (Sicily)

2015 ◽  
Vol 27 (3) ◽  
pp. 279-288 ◽  
Author(s):  
Simona Raneri ◽  
Veerle Cnudde ◽  
Tim De Kock ◽  
Hannelore Derluyn ◽  
Germana Barone ◽  
...  
Keyword(s):  
Porous Structure ◽  
Building Stone ◽  
X Ray ◽  
Degradation Processes ◽  
X Ray Computed ◽  
Micro Tomography

Utilization of X-ray computed micro-tomography to evaluate iron sulphide distribution in roofing slates

2018 ◽  
Vol 51 (2) ◽  
pp. 169-178 ◽  
Author(s):  
M. Vavro ◽  
K. Souček ◽  
T. Daněk ◽  
D. Matýsek ◽  
L. Georgiovská ◽  
...  
Keyword(s):  
Iron Sulphide ◽  
X Ray ◽  
X Ray Computed ◽  
Micro Tomography

Imaging soil structure to measure soil functions and soil health with X-ray computed micro-tomography

2021 ◽  
pp. 111-138
Author(s):  
Alexandra Kravchenko ◽  
◽  
Andrey Guber ◽  
Keyword(s):  
Soil Structure ◽  
Imaging Techniques ◽  
Soil Health ◽  
Depth Information ◽  
X Ray ◽  
Non Invasive ◽  
Pore Architecture ◽  
Gas Fluxes ◽  
X Ray Computed ◽  
Micro Tomography

The use of non-invasive imaging techniques expands opportunities to characterize soil health and functioning, complementing the information from the traditional soil structure analyses. Soil pore architecture drives water and gas fluxes, chemical transport, activity and movement of soil biota; and imaging techniques are particularly suitable for quantifying it. Here we discuss the potential for X-ray computed micro-tomography (X-ray µCT) as a tool to characterize key parameters of soil pore architecture, such as measures of macroporosity, pore connectivity, pore shape, and solid-to-pore distance. We also provide a brief overview of the principles behind X-ray µCT, examples of the latest literature that implemented these pore measures for soil characterization, and recommendations for the methods that can be used to determine these characteristics using publicly available software ImagJ. We also assembled a list of resources where in-depth information and comprehensive reviews of the current literature can be found.

Image-Based Modeling of Dynamic Porous SMA Behavior

2001 ◽  
Author(s):  
Muhammad A. Qidwai ◽  
Virginia G. DeGiorgi ◽  
Rick K. Everett
Keyword(s):  
Strain Rate ◽  
Material Behavior ◽  
X Ray ◽  
Image Based Modeling ◽  
Shock Mitigation ◽  
Split Hopkinson ◽  
X Ray Computed ◽  
Bar Test ◽  
Micro Tomography ◽  
Potential Use

Abstract Porous shape memory alloys (SMAs) are a relatively new group of materials that are of interest because of their potential use in the design of vibration-control, damping and shock mitigation systems. Essential to the use of these materials is an understanding of their mid to high strain-rate response. The emphasis of this research is to develop a computational methodology that will bridge the microstructural and macrostructural features of porous SMAs. In a first attempt, information obtained from x-ray computed micro tomography (XCMT) images is employed in producing realistic finite element meshes with the help of probabilistic pore generating algorithms. Average constitutive behavior of porous SMA in the intermediate strain rate of 103/s is studied by simulating the compressional split-Hopkinson bar test. Preliminary results are obtained for selected pore volume fractions and distinct trends in material behavior are observed.

Monitoring the Diameter Changes of Flax Fibre Elements during Twin Screw Extrusion Using X-Ray Computed Micro-Tomography

2018 ◽  
Vol 17 (8) ◽  
pp. 1159-1170 ◽  
Author(s):  
Seif Eddine Hamdi ◽  
Christine Delisée ◽  
Jérome Malvestio ◽  
Johnny Beaugrand ◽  
Françoise Berzin
Keyword(s):  
Flax Fibre ◽  
Twin Screw Extrusion ◽  
X Ray ◽  
Screw Extrusion ◽  
Twin Screw ◽  
X Ray Computed ◽  
Micro Tomography
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