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Fracture Initiation near a Circular ...

Blanksma, Derrick.

Fracture Initiation near a Circular Cavity.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Fracture Initiation near a Circular Cavity.
作者:	Blanksma, Derrick.
面頁冊數:	76 p.
附註:	Source: Masters Abstracts International, Volume: 52-03.
附註:	Adviser: Joseph F. Labuz.
Contained By:	Masters Abstracts International52-03(E).
標題:	Engineering, Geological.
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1545366
ISBN:	9781303393235

Fracture Initiation near a Circular Cavity.
Blanksma, Derrick.

Fracture Initiation near a Circular Cavity. - 76 p.

Source: Masters Abstracts International, Volume: 52-03.

Thesis (M.S.)--University of Minnesota, 2013.

Initiation of fracture from a circular cavity was monitored with a cavity expansion apparatus for two rock materials: Berea sandstone and Indiana limestone. Fracture characteristic from cavity expansion tests were compared to three-point-bending (3PB) tests on the same rock.

ISBN: 9781303393235Subjects--Topical Terms:

603346
Engineering, Geological.

Fracture Initiation near a Circular Cavity.
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100 1 $a Blanksma, Derrick. $3 660207
245 1 0 $a Fracture Initiation near a Circular Cavity.
300 $a 76 p.
500 $a Source: Masters Abstracts International, Volume: 52-03.
500 $a Adviser: Joseph F. Labuz.
502 $a Thesis (M.S.)--University of Minnesota, 2013.
520 $a Initiation of fracture from a circular cavity was monitored with a cavity expansion apparatus for two rock materials: Berea sandstone and Indiana limestone. Fracture characteristic from cavity expansion tests were compared to three-point-bending (3PB) tests on the same rock.
520 $a Using a particle tracking technique called digital image correlation (DIC), a discontinuity in the displacement field near the cavity boundary was identified at 80% and 60% peak internal pressure for Berea sandstone and Indiana limestone, respectively. The critical crack opening displacement (CCOD) was assumed to be associated with unstable crack growth from the 3PB tests, which occurs at peak loading. The CCOD measurements from three-point-bend tests were 51-58microm for Berea sandstone and 15-16microm for Indiana limestone. The measured COD from the cavity expansion test at peak pressure was 57-90microm for Berea sandstone and 20-24microm for Indiana limestone. The results show the CCOD from cavity expansion were on average 35% higher than three-point-bend test for Berea sandstone and 40% higher for Indiana limestone, suggesting stable growth prior to peak pressure.
590 $a School code: 0130.
650 4 $a Engineering, Geological. $3 603346
650 4 $a Engineering, Civil. $3 212394
690 $a 0466
690 $a 0543
710 2 $a University of Minnesota. $b Geological Engineering. $3 660208
773 0 $t Masters Abstracts International $g 52-03(E).
790 $a 0130
791 $a M.S.
792 $a 2013
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1545366

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