The Resource Effects of indentation speed and water saturation level on the behavior of Roubidoux sandstone, by Azupuri Ayerikujei Kaba

Effects of indentation speed and water saturation level on the behavior of Roubidoux sandstone, by Azupuri Ayerikujei Kaba

Label
Effects of indentation speed and water saturation level on the behavior of Roubidoux sandstone
Title
Effects of indentation speed and water saturation level on the behavior of Roubidoux sandstone
Statement of responsibility
by Azupuri Ayerikujei Kaba
Creator
Author
Subject
Language
eng
Summary
"The experiment conducted in this research was to determine the behavior of a porous rock under an indenter. To investigate this, medium-grained sandstone was subjected to a series of indentation tests. These tests were conducted under both dry and saturated conditions using a rounded conical indenter. In addition, tests were conducted at different indentation speeds. The test results were used to calculate the mechanical specific energy (SE) and specific penetration (SP). The porewater pressure evolution in the saturated sample was also monitored. The tests and subsequent analyses reveal that saturation did not affect the specific energy when the indentation rate was 0.3 mm/sec. However, as the indentation rate increased to 20 mm/sec, a 32% decrease in specific energy was observed (significant at 80% confidence). The specific penetration, on the other hand, appeared not be affected by saturation at either indentation speed. The variability in SE and SP was assumed to be controlled by three factors: saturation, loading rate, and rock properties. The water saturation was expected to be the major factor to affect the overall behavior of the rock beneath the indenter. However, the porewater pressure measurements showed that, though there was a statistically significant pore pressure buildup rate with increasing indentation rate, the maximum pore pressure magnitude was too small to affect the loading pressure. Variability in the rock properties could also cause this variation, but more data are required to separate the rock property effects from saturation and indentation speed effects."--Abstract, page iii
Member of
Cataloging source
UMR
http://library.link/vocab/creatorName
Kaba, Azupuri Ayerikujei
Degree
M.S.
Dissertation year
2014
Granting institution
Missouri University of Science and Technology
Illustrations
illustrations
Index
no index present
Literary form
non fiction
Nature of contents
  • dictionaries
  • bibliography
  • theses
http://library.link/vocab/subjectName
  • Water-rock interaction
  • Fracture mechanics
  • Sandstone
  • Rock mechanics
Label
Effects of indentation speed and water saturation level on the behavior of Roubidoux sandstone, by Azupuri Ayerikujei Kaba
Instantiates
Publication
Note
Vita
Bibliography note
Includes bibliographic references (pages 105-109)
Carrier category
online resource
Carrier category code
  • cr
Carrier MARC source
rdacarrier
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent
Control code
894580999
Extent
1 online resource (xi, 110 pages)
Form of item
online
Governing access note
These materials are protected under copyright by the original author
Media category
computer
Media MARC source
rdamedia
Media type code
  • c
Other physical details
illustrations (most colored).
Specific material designation
remote
System control number
(OCoLC)894580999
Label
Effects of indentation speed and water saturation level on the behavior of Roubidoux sandstone, by Azupuri Ayerikujei Kaba
Publication
Note
Vita
Bibliography note
Includes bibliographic references (pages 105-109)
Carrier category
online resource
Carrier category code
  • cr
Carrier MARC source
rdacarrier
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent
Control code
894580999
Extent
1 online resource (xi, 110 pages)
Form of item
online
Governing access note
These materials are protected under copyright by the original author
Media category
computer
Media MARC source
rdamedia
Media type code
  • c
Other physical details
illustrations (most colored).
Specific material designation
remote
System control number
(OCoLC)894580999

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