Poisson S Ratio Of Granite

Poisson s ratio measures the ratio of lateral strain to axial strain at linearly elastic region.

Poisson s ratio of granite.

Poisson s ratio varies between 0 1 for high strength concrete and 0 2 for weak mixes. The following is a chart of poisson s ratio for common engineering materials and metals. Strength of materials engineering metals materials. 23 found no systematic trend in the difference between the.

It is a required computational input for the numerical stress analyses. Values of poisson s ratio for some common rocks. Typical values of modulus of elasticity of some common are given in the table below. Typical poisson s ratios for some common materials are indicated below.

For most common materials the poisson s ratio is in the range 0 0 5. 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. 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. For most rocks the value of poisson s ratio ranges in between 0 15 to 0 40.

Poisson s ratio of rock. 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. Poisson s ratio is the ratio of lateral strain to longitudinal strain in a material subjected to loading. Poisson s ratio in rock mechanics.

Granite is a type of common industrial natural stone. The graph bars on the material properties cards below compare granite to other natural stone materials top and the entire database bottom. 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. With poisson s ratio for aluminum 0 334 the contraction can be calculated as.

Dr 0 334 100 10 3 m 5 10 3 m 10 m 1 7 10 5 m 0 017 mm. It is normally taken as 0 15 for strength design and 0 2 for serviceability criteria. A half full bar means it s 50 of the highest and so on. The measurement of these properties is widely used in the evaluation of.

Balmer 29 zisman 30 and ramana and venkatanarayana 31 found that the static poisson s ratio is less than the dynamic poisson s ratio.