Effects of surface cracks and strain rate on the tensile behavior of Balmoral Red granite

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

Standard

Effects of surface cracks and strain rate on the tensile behavior of Balmoral Red granite. / Mardoukhi, Ahmad; Hokka, Mikko ; Kuokkala, Veli-Tapani.

11th International Conference on the Mechanical and Physical Behaviour of Materials Under Dynamic Loading. EDP Sciences, 2015. 02007.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

Harvard

Mardoukhi, A, Hokka, M & Kuokkala, V-T 2015, Effects of surface cracks and strain rate on the tensile behavior of Balmoral Red granite. in 11th International Conference on the Mechanical and Physical Behaviour of Materials Under Dynamic Loading., 02007, EDP Sciences, International conference on the mechanical and physical behaviour of materials under dynamic loading, 1/01/00.

APA

Mardoukhi, A., Hokka, M., & Kuokkala, V-T. (2015). Effects of surface cracks and strain rate on the tensile behavior of Balmoral Red granite. In 11th International Conference on the Mechanical and Physical Behaviour of Materials Under Dynamic Loading [02007] EDP Sciences.

Vancouver

Mardoukhi A, Hokka M , Kuokkala V-T. Effects of surface cracks and strain rate on the tensile behavior of Balmoral Red granite. In 11th International Conference on the Mechanical and Physical Behaviour of Materials Under Dynamic Loading. EDP Sciences. 2015. 02007

Author

Mardoukhi, Ahmad ; Hokka, Mikko ; Kuokkala, Veli-Tapani. / Effects of surface cracks and strain rate on the tensile behavior of Balmoral Red granite. 11th International Conference on the Mechanical and Physical Behaviour of Materials Under Dynamic Loading. EDP Sciences, 2015.

Bibtex - Download

@inproceedings{ffb6f1adfc454fec961f97bb49b22a4c,

title = "Effects of surface cracks and strain rate on the tensile behavior of Balmoral Red granite",

abstract = "This paper presents an experimental procedure for studying the effects of surface cracks on the mechanical behavior of Balmoral Red granite under dynamic and quasi-static loading. Three different thermal shocks were applied on the surface of the Brazilian Disc test samples by keeping a flame torch at a fixed distance from the sample surface for 10, 30, and 60 seconds. Microscopy clearly shows that the number of the surface cracks increases with the duration of the thermal shock. After the thermal shock, the Brazilian Disc tests were performed using a servohydraulic materials testing machine and a compression Split Hopkinson Pressure Bar (SHPB) device. The results show that the tensile strength of the rock decreases and the rate sensitivity of the rock increases as more cracks are introduced to the structure. The DIC analysis of the Brazilian disc tests shows that the fracture of the sample initiates at the center of the samples or slightly closer to the incident bar contact point. This is followed by crushing of the samples at both contact points with the stress bars.",

author = "Ahmad Mardoukhi and Mikko Hokka and Veli-Tapani Kuokkala",

year = "2015",

month = "9",

language = "English",

isbn = "978-2-7598-1817-4",

booktitle = "11th International Conference on the Mechanical and Physical Behaviour of Materials Under Dynamic Loading",

publisher = "EDP Sciences",

address = "France",

}

RIS (suitable for import to EndNote) - Download

TY - GEN

T1 - Effects of surface cracks and strain rate on the tensile behavior of Balmoral Red granite

AU - Mardoukhi, Ahmad

AU - Hokka, Mikko

AU - Kuokkala, Veli-Tapani

PY - 2015/9

Y1 - 2015/9

N2 - This paper presents an experimental procedure for studying the effects of surface cracks on the mechanical behavior of Balmoral Red granite under dynamic and quasi-static loading. Three different thermal shocks were applied on the surface of the Brazilian Disc test samples by keeping a flame torch at a fixed distance from the sample surface for 10, 30, and 60 seconds. Microscopy clearly shows that the number of the surface cracks increases with the duration of the thermal shock. After the thermal shock, the Brazilian Disc tests were performed using a servohydraulic materials testing machine and a compression Split Hopkinson Pressure Bar (SHPB) device. The results show that the tensile strength of the rock decreases and the rate sensitivity of the rock increases as more cracks are introduced to the structure. The DIC analysis of the Brazilian disc tests shows that the fracture of the sample initiates at the center of the samples or slightly closer to the incident bar contact point. This is followed by crushing of the samples at both contact points with the stress bars.

AB - This paper presents an experimental procedure for studying the effects of surface cracks on the mechanical behavior of Balmoral Red granite under dynamic and quasi-static loading. Three different thermal shocks were applied on the surface of the Brazilian Disc test samples by keeping a flame torch at a fixed distance from the sample surface for 10, 30, and 60 seconds. Microscopy clearly shows that the number of the surface cracks increases with the duration of the thermal shock. After the thermal shock, the Brazilian Disc tests were performed using a servohydraulic materials testing machine and a compression Split Hopkinson Pressure Bar (SHPB) device. The results show that the tensile strength of the rock decreases and the rate sensitivity of the rock increases as more cracks are introduced to the structure. The DIC analysis of the Brazilian disc tests shows that the fracture of the sample initiates at the center of the samples or slightly closer to the incident bar contact point. This is followed by crushing of the samples at both contact points with the stress bars.

M3 - Conference contribution

SN - 978-2-7598-1817-4

BT - 11th International Conference on the Mechanical and Physical Behaviour of Materials Under Dynamic Loading

PB - EDP Sciences

ER -

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