Poisson S Ratio Of Granite

Dr 0 334 100 10 3 m 5 10 3 m 10 m 1 7 10 5 m 0 017 mm.

Poisson s ratio of granite.

For most rocks the value of poisson s ratio ranges in between 0 15 to 0 40. Strength of materials engineering metals materials. Values of poisson s ratio for some common rocks. Poisson s ratio is the ratio of lateral strain to longitudinal strain in a material subjected to loading.

The elastic moduli young s modulus shear modulus and poisson s ratio and damping of concretes and refractories materials can be accurately characterized with the sonelastic systems of non destructive testing both at room temperature as for low and high temperatures. Poisson s ratio metals materials chart. 23 found no systematic trend in the difference between the. The graph bars on the material properties cards below compare granite to other natural stone materials top and the entire database bottom.

Poisson s ratios for common materials. Poisson s ratio varies between 0 1 for high strength concrete and 0 2 for weak mixes. Typical poisson s ratios for some common materials are indicated below. A full bar means this is the highest value in the relevant set.

Poisson s ratio is a measure of the poisson effect that describes the expansion or contraction of a material in directions perpendicular to the direction of loading the value of poisson s ratio is the negative of the ratio of transverse strain to axial strain for small values of these changes is the amount of transversal expansion divided by the amount of axial compression. The following is a chart of poisson s ratio for common engineering materials and metals. Granite is a type of common industrial natural stone. Balmer 29 zisman 30 and ramana and venkatanarayana 31 found that the static poisson s ratio is less than the dynamic poisson s ratio.

It is normally taken as 0 15 for strength design and 0 2 for serviceability criteria. Since poisson s ratio is a mechanical property that plays a role in the deformation of elastic materials it is utilized in rock engineering problems associated with the deformation of rocks e g. For most common materials the poisson s ratio is in the range 0 0 5. Poisson s ratio in rock mechanics.

Poisson s ratio of rock. However sutherland 32 and vanheerden 26 found that the static poisson s ratio is greater than the dynamic poisson s ratio whereas tutuncu et al. The measurement of these properties is widely used in the evaluation of. With poisson s ratio for aluminum 0 334 the contraction can be calculated as.

It is a required computational input for the numerical stress analyses.