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You searched for subject:(BRITTLENESS AND TOUGHNESS TESTING MATERIALS TESTING ). Showing records 1 – 3 of 3 total matches.

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ETH Zürich

1. Poulikakos, Lily Darvish. A multi-scale fundamental investigation of moisture induced deterioration of porous asphalt concrete.

Degree: 2011, ETH Zürich

Subjects/Keywords: ASPHALTBETON + BITUMENBETON (BAUSTOFFE); OFFENPORIGE ASPHALTBELÄGE (STRASSENBAU); MIKROSKOPISCHE UNTERSUCHUNG, GEFÜGEBEOBACHTUNG (MATERIALPRÜFUNG); MECHANISCHE MATERIALPRÜFUNG, MECHANISCHE MATERIALEIGENSCHAFTEN (MATERIALWISSENSCHAFTEN); PRÜFUNG VON SPRÖDIGKEIT UND ZÄHIGKEIT (MATERIALPRÜFUNG); DYNAMISCHE UND MECHANISCHE EIGENSCHAFTEN DÜNNER SCHICHTEN (PHYSIK VON MOLEKULARSYSTEMEN); BRUCH, BRUCHGEFÜGE, BRUCHFESTIGKEIT (MATERIALPRÜFUNG); MATERIALPRÜFUNG, MATERIALEIGENSCHAFTEN (MATERIALWISSENSCHAFTEN); ASPHALT CONCRETE + BITUMINOUS CONCRETE (BUILDING MATERIALS); POROUS ASPHALT PAVEMENTS (ROAD CONSTRUCTION); MICROSCOPIC EXAMINATION, OBSERVATION OF STRUCTURE AND TEXTURE (MATERIALS TESTING); MECHANICAL MATERIALS TESTING, MECHANICAL PROPERTIES OF MATERIALS (MATERIALS SCIENCE); BRITTLENESS AND TOUGHNESS TESTING (MATERIALS TESTING); DYNAMIC AND MECHANICAL PROPERTIES OF THIN FILMS (PHYSICS OF MOLECULAR SYSTEMS); FRACTURE, FRACTURE MECHANICS (MATERIALS TESTING); MATERIALS TESTING, MATERIALS PROPERTIES (MATERIALS SCIENCE); info:eu-repo/classification/ddc/624; info:eu-repo/classification/ddc/620; Civil engineering; Engineering & allied operations

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Poulikakos, L. D. (2011). A multi-scale fundamental investigation of moisture induced deterioration of porous asphalt concrete. (Doctoral Dissertation). ETH Zürich. Retrieved from http://hdl.handle.net/20.500.11850/152534

Chicago Manual of Style (16th Edition):

Poulikakos, Lily Darvish. “A multi-scale fundamental investigation of moisture induced deterioration of porous asphalt concrete.” 2011. Doctoral Dissertation, ETH Zürich. Accessed March 03, 2021. http://hdl.handle.net/20.500.11850/152534.

MLA Handbook (7th Edition):

Poulikakos, Lily Darvish. “A multi-scale fundamental investigation of moisture induced deterioration of porous asphalt concrete.” 2011. Web. 03 Mar 2021.

Vancouver:

Poulikakos LD. A multi-scale fundamental investigation of moisture induced deterioration of porous asphalt concrete. [Internet] [Doctoral dissertation]. ETH Zürich; 2011. [cited 2021 Mar 03]. Available from: http://hdl.handle.net/20.500.11850/152534.

Council of Science Editors:

Poulikakos LD. A multi-scale fundamental investigation of moisture induced deterioration of porous asphalt concrete. [Doctoral Dissertation]. ETH Zürich; 2011. Available from: http://hdl.handle.net/20.500.11850/152534

2. Ravestein, T. (author). Fraccability determination of a Posidonia Shale Formation analogue through geomechanical experiments and micro-CT fracture propagation analysis.

Degree: 2014, Delft University of Technology

Gas resources in The Netherlands are steadily running scarce, therefore alternative gas resources are necessary. One of those alternatives present in the Dutch subsurface is shale gas, present in among others the Posidonia Shale Formation (PSF). Little is known about this formation and drilled cores are rare. This study therefore focuses on a time and depositional equivalent in the U.K.: the Whitby Mudstone Formation (WMF). Stimulating the production of a reservoir by hydraulic fracturing (fraccing) is necessary in order to produce the gas economically viable. To determine the prospectivity of this fraccing (fraccability), several concepts are assessed, e.g. Brittleness Index (B.I.) (Rickman et al. 2008), Fracture Toughness (KIC) (Lawn & Wilshaw 1975) and Fraccability Index (F.I.) (Jin et al. 2014). The fraccability of the WMF is determined through geomechanical experiments and X-ray micro-computed tomography fracture propagation analysis. Samples were taken along an exhumed outcrop 8 meter in height. To account for anisotropy, experiments were conducted at different angles to the bedding. The applied unconfined stress to create new fractures in repetitive tests, depends on the interplay of the already present fractures. Fractures that do not reach the sample’s edges, simulate a triaxial ellipsoid shape and follow a sublinear aperture-length ratio. The WMF results show low KIC-values, which is favorable, but scattered B.I. and F.I. values, which do not provide a clear view on the prospectivity of the WMF. In general, the B.I. and F.I. provide important insights in fraccability, though its significance is relative. Values can be compared with other datasets or intervals under the condition that the same limits of experimentally measured Young’s Modulus, Poisson’s Ratio and Fracture Toughness in these concepts are applied. The WMF thus exhibits a questionable fraccability. Near the formation’ top and bottom, fraccing is preferred opposed to the middle. But weathering and exhumation of the WMF samples has certainly had its effect on the quality and uncertainty of the results.

Petroleum Engineering

Geoscience & Engineering

Civil Engineering and Geosciences

Advisors/Committee Members: Barnhoorn, A. (mentor).

Subjects/Keywords: Posidonia Shale Formation; Hydraulic Fracturing; Brittleness Index; Fracture Toughness; Fraccability Index

…AVERAGE FRACTURE APERTURE §5.3.3 FRACTURE POROSITY §5.3.4 BRITTLENESS INDEX (B.I.)… …27 §5.3.5 FRACTURE TOUGHNESS (KIC) §5.3.6 FRACCABILITY INDEX (F.I.)… …AVERAGE FRACTURE APERTURE §6.3.3 FRACTURE POROSITY 33 34 §6.3.4 BRITTLENESS INDEX (B.I… …x29; §6.3.5 FRACTURE TOUGHNESS 35 §6.3.6 FRACCABILITY INDEX (F.I.) §6.3.7… …x29; and Brittleness Index (%) measured along the formation. Round dots… 

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Ravestein, T. (. (2014). Fraccability determination of a Posidonia Shale Formation analogue through geomechanical experiments and micro-CT fracture propagation analysis. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:51f40eaf-53e1-42b0-9fab-95ca861907d6

Chicago Manual of Style (16th Edition):

Ravestein, T (author). “Fraccability determination of a Posidonia Shale Formation analogue through geomechanical experiments and micro-CT fracture propagation analysis.” 2014. Masters Thesis, Delft University of Technology. Accessed March 03, 2021. http://resolver.tudelft.nl/uuid:51f40eaf-53e1-42b0-9fab-95ca861907d6.

MLA Handbook (7th Edition):

Ravestein, T (author). “Fraccability determination of a Posidonia Shale Formation analogue through geomechanical experiments and micro-CT fracture propagation analysis.” 2014. Web. 03 Mar 2021.

Vancouver:

Ravestein T(. Fraccability determination of a Posidonia Shale Formation analogue through geomechanical experiments and micro-CT fracture propagation analysis. [Internet] [Masters thesis]. Delft University of Technology; 2014. [cited 2021 Mar 03]. Available from: http://resolver.tudelft.nl/uuid:51f40eaf-53e1-42b0-9fab-95ca861907d6.

Council of Science Editors:

Ravestein T(. Fraccability determination of a Posidonia Shale Formation analogue through geomechanical experiments and micro-CT fracture propagation analysis. [Masters Thesis]. Delft University of Technology; 2014. Available from: http://resolver.tudelft.nl/uuid:51f40eaf-53e1-42b0-9fab-95ca861907d6


Brno University of Technology

3. Machačová, Denisa. Víceúrovňové hodnocení křehkosti vybraných stavebních kompozitů: Complex evaluation of brittleness of selected building composites.

Degree: 2019, Brno University of Technology

Specified topic of the thesis is a multilevel evaluation of brittleness of selected building composites. The work deals with the opinions of fracture parameters of test specimens of lightweight and ordinary concrete. Specimens further differed fibres content in concrete mixtures, their type and length. The work is divided into two parts, theoretical and practical. The theoretical part conceives composite materials and introduction to fracture mechanics. The practical part describes the different steps for fracture-mechanical parameters evaluation using StiCrack and Excel Visual Basic software. The main part of the work is to evaluate the brittleness of different test specimens, taking into account the type of concrete mix and type of fibres. Advisors/Committee Members: Keršner, Zbyněk (advisor), Veselý, Václav (referee).

Subjects/Keywords: obyčejný beton; lehký beton; iniciace lomu; křehkost; posun; rozevření trhliny (CMOD); lomová houževnatost; lomová energie; lomová práce; iniciace trhliny; ordinary concrete; lightweight concrete; fracture initiation; brittleness; deformation; crack mouth opening displacement; fracture toughness; fracture energy; fracture work; crack initiation

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Machačová, D. (2019). Víceúrovňové hodnocení křehkosti vybraných stavebních kompozitů: Complex evaluation of brittleness of selected building composites. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/30497

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Machačová, Denisa. “Víceúrovňové hodnocení křehkosti vybraných stavebních kompozitů: Complex evaluation of brittleness of selected building composites.” 2019. Thesis, Brno University of Technology. Accessed March 03, 2021. http://hdl.handle.net/11012/30497.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Machačová, Denisa. “Víceúrovňové hodnocení křehkosti vybraných stavebních kompozitů: Complex evaluation of brittleness of selected building composites.” 2019. Web. 03 Mar 2021.

Vancouver:

Machačová D. Víceúrovňové hodnocení křehkosti vybraných stavebních kompozitů: Complex evaluation of brittleness of selected building composites. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Mar 03]. Available from: http://hdl.handle.net/11012/30497.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Machačová D. Víceúrovňové hodnocení křehkosti vybraných stavebních kompozitů: Complex evaluation of brittleness of selected building composites. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/30497

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

.