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An intact solid cylindrical specimen of diameter 60 mm and thickness 30 mm is prepared from a Hoek-Brown rock material with m, 10. if the disc fails under a diametral compressive force of 7.8 kN as shown opposite, determine the brittleness index of the tested material based on stresses induced at the centre of the loaded specimen; i.e., the ratio of the material's compressive to tensile strength. Assume that the Hoek-Brown failure criterion is valid for the plane stress field condition developed at the centre of the specimen. 7.8 kN P

An intact solid cylindrical specimen of diameter 60 mm and thickness 30 mm is prepared from a Hoek-Brown rock material with m, 10. if the disc fails under a diametral compressive force of 7.8 kN as shown opposite, determine the brittleness index of the tested material based on stresses induced at the centre of the loaded specimen; i.e., the ratio of the material's compressive to tensile strength. Assume that the Hoek-Brown failure criterion is valid for the plane stress field condition developed at the centre of the specimen. 7.8 kN P

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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An intact solid cylindrical specimen of diameter 50 mm and thickness 30 mm is prepared from a Hoek-Brown rock material with m,= 10. If the disc fails under a diametral compressive force of 7.8 kN as shown opposite, determine the brittleness index of the tested material based on stresses induced at the centre of the loaded specimen; i.e., the ratio of the material's compressive to tensile strength. Assume that the Hoek-Brown failure criterion is valid for the plane stress field condition developed at the centre of the specimen. 7.8 kN P B
Transcribed Image Text:An intact solid cylindrical specimen of diameter 50 mm and thickness 30 mm is prepared from a Hoek-Brown rock material with m,= 10. If the disc fails under a diametral compressive force of 7.8 kN as shown opposite, determine the brittleness index of the tested material based on stresses induced at the centre of the loaded specimen; i.e., the ratio of the material's compressive to tensile strength. Assume that the Hoek-Brown failure criterion is valid for the plane stress field condition developed at the centre of the specimen. 7.8 kN P B
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