On the Relationship between Bond's Work Index and Mechanical Properties of Brittle Materials

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概要

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• By a dimensional analysis method, we have obtained the following relationship between the Bond's work index and the mechanical properties of brittle materials. Wi・ρ = 0.623 Y_1^<0.35> Sc^<0.15> St^<0.50> (1-ν_1^2)^<0.20> Rc^<-0.09> Rt^<-0.48> Where Wi [Kg-cm/kg] is the work index, ρ [kg/cm^3] is the density. Sc [Kg/cm^2] is the compressive strength. St [Kg/cm^2] is the tensile strength, Y_1 [Kg/cm^2] is the Young's modulus, ν_1 [-] is the Poisson's ratio, Rc [-] is the ratio of specific surface area of fractured product to the rod specimen and Rt [-] is the ratio of specific surface area to the spherical specimen, both under slow rate of compressive loading. Dividing Wi calculated from the above equation by 4.05×10^4 Kg-cm/kg, we can obtain Wi having the unit of [kWh/ton]. The above relationship is applicable to materials having the Moh's hardness H=2.0-6.5.

• 東北大学の論文

著者

• Saito Fumio

  The Research Institute Of Mineral Dressing And Metallurgy

• YASHIMA Saburo

  The Research Institute of Mineral Dressing and Metallurgy

• Awano Osamu

  Takasago Thermal Engineering Company Ltd.

関連論文

• Single Particle Crushing under Slow Rate of Loading
• Mechanical Properties of Brittle Materials and Their Single Fracture under Dynamic Loading
• Size Effects of Particle Compressive Strength of Brittle Solids
• Fatigue Fracture of Single Particles
• On the Relationship between Bond's Work Index and Mechanical Properties of Brittle Materials

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