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D. J. Williams
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Proceedings Papers

Effect of the Minor Principal Stress on Crack Initiation Stress Threshold

E. Mutaz, M. Serati, D. J. Williams
Paper presented at the ISRM Regional Symposium - 11th Asian Rock Mechanics Symposium, October 21–25, 2021
Paper Number: ISRM-ARMS11-2021-310
https://doi.org/10.1088/1755-1315/861/4/042013
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Proceedings Papers

Crack Initiation Evolution Under Triaxial Loading Conditions

E. Mutaz, M. Seratiand, D. J. Williams
Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-007
https://doi.org/10.1088/1755-1315/833/1/012012
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Proceedings Papers

Variation of Apparent Cohesion and Friction Angle Under Polyaxial Stress Conditions in Concrete

E. Mutaz, M. Serati, R. Rimmelin, D. J. Williams
Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-013
https://doi.org/10.1088/1755-1315/833/1/012018
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View Paper titled, Variation of Apparent Cohesion and Friction Angle Under Polyaxial Stress Conditions in Concrete
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Proceedings Papers

On the Evaluation of Crack Initiation Stress Threshold

E. Mutaz, M. Serati, M. Bahaaddini, D. J. Williams
Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1590
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Proceedings Papers

Failure Mode of Concrete Under Polyaxial Stresses

M. Serati, E. Mutaz, D. J. Williams, S. Quintero Olaya, J. Karlovsek, L. Hanzic
Paper presented at the 54th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2020
Paper Number: ARMA-2020-1141
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View Paper titled, Failure Mode of Concrete Under Polyaxial Stresses
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Proceedings Papers

A Comparative Study on Shear Strength of Crushed Waste Glass with Natural and Manufactured Sand

D. Kazmi, M. Serati, D. J. Williams, S. Qasim, Y. P. Cheng, S. Q. Olaya
Paper presented at the 54th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2020
Paper Number: ARMA-2020-1480
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View Paper titled, A Comparative Study on Shear Strength of Crushed Waste Glass with Natural and Manufactured Sand
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Proceedings Papers

A Validation Study for the Estimation of Point Load Index at Varying Slenderness Ratio

M. Serati, D. J. Williams, S. Song
Paper presented at the 5th ISRM Young Scholars' Symposium on Rock Mechanics and International Symposium on Rock Engineering for Innovative Future, December 1–4, 2019
Paper Number: ISRM-YSRM-2019-039
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View Paper titled, A Validation Study for the Estimation of Point Load Index at Varying Slenderness Ratio
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Proceedings Papers

Puzzles in Tensile Strength Determination of Hard Rocks

M. Serati, D. J. Williams
Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0210
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View Paper titled, Puzzles in Tensile Strength Determination of Hard Rocks
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Proceedings Papers

Comparison of Basic Geotechnical Parameters of Crushed Waste Glass with Natural and Manufactured Sands

D. Kazmi, D. J. Williams, M. Serati
Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0312
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View Paper titled, Comparison of Basic Geotechnical Parameters of Crushed Waste Glass with Natural and Manufactured Sands
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Proceedings Papers

Some New Aspects on the Diametral Point Load Testing

M. Serati, H. Masoumi, D. J. Williams, H. Alehossein, H. Roshan
Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1025
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Proceedings Papers

Modified Brazilian Test for Indirect Measurement of Tensile Strength of Brittle Materials

M. Serati, H. Masoumi, D. J. Williams, H. Alehossein
Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0834
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View Paper titled, Modified Brazilian Test for Indirect Measurement of Tensile Strength of Brittle Materials
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Proceedings Papers

Investigation of Shear Strength and Breakdown of Mine Waste Rock

Y. Xu, D. J. Williams, M. Serati
Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0678
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View Paper titled, Investigation of Shear Strength and Breakdown of Mine Waste Rock
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Proceedings Papers

Effect of Scalping on Shear Strength of Aggregate

Y. Xu, D. J. Williams, M. Serati
Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0677
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Proceedings Papers

Size Dependency of Intact Rocks With High Brittleness: A Potential Solution to Eliminate Secondary Fractures in Brazilian Test

H. Masoumi, M. Serati, D. J. Williams, H. Alehossein
Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0843
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View Paper titled, Size Dependency of Intact Rocks With High Brittleness: A Potential Solution to Eliminate Secondary Fractures in Brazilian Test
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Proceedings Papers

Hertzian Contact Damage in a Hollow Circular Cylinder

M. Serati, D. J. Williams, N. Erarslan
Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-064
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View Paper titled, Hertzian Contact Damage in a Hollow Circular Cylinder
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Proceedings Papers

Weathering Profiles of Some Sandstones from Sunshine Coast, Australia – Morphological and Geotechnical Approach

E. A. G. Marques, D. J. Williams
Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-044
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View Paper titled, Weathering Profiles of Some Sandstones from Sunshine Coast, Australia – Morphological and Geotechnical Approach
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Proceedings Papers

Numerical Study of Rock Aggregate Materials Under Various Loadings

L. Zhu, N. Erarslan, D. J. Williams, M. Serati, M. Ghamgoshar
Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-647
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View Paper titled, Numerical Study of Rock Aggregate Materials Under Various Loadings
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Proceedings Papers

The Ring Test under General Interior And Exterior Loading

M. Serati, N. Erarslan, D. J. Williams
Paper presented at the 13th ISRM International Congress of Rock Mechanics, May 10–13, 2015
Paper Number: ISRM-13CONGRESS-2015-198
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View Paper titled, The Ring Test under General Interior And Exterior Loading
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Proceedings Papers

Multiple Factorial Anaylsis of Rock Fragmentation under Various Cyclic Loading Conditions

M. Ghamgosar, D. J. Williams, N. Erarslan
Paper presented at the 13th ISRM International Congress of Rock Mechanics, May 10–13, 2015
Paper Number: ISRM-13CONGRESS-2015-175
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View Paper titled, Multiple Factorial Anaylsis of Rock Fragmentation under Various Cyclic Loading Conditions
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Proceedings Papers

Evolution of Damage on Tensile Fracturing of Rock by Means of Elastic Ultrasonic Wave Velocity

M. Ghamgosar, N. Erarslan, D. J. Williams
Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-045
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View Paper titled, Evolution of Damage on Tensile Fracturing of Rock by Means of Elastic Ultrasonic Wave Velocity
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