Question: A rock sample is tested in uniaxial compression by connecting strain gauges in axial and lateral directions. The test results are: Uniaxial compressive strength oc

A rock sample is tested in uniaxial compression by connecting strain gauges in axial and
lateral directions. The test results are: Uniaxial compressive strength oc =40MPa,
young's modulus E=5.7 GPa and shear modulus G=2.23 GPa. Determine the volumetric
strain at the time of failure of the sample

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