Poissons Ratio Of Granite

An example is wood which is most stiff and strong along the grain and less so in the other directions.

Poissons ratio of granite.

Orthotropic materials have three mutually perpendicular planes of symmetry in their material properties. The graph bars on the material properties cards below compare granite to other natural stone materials top and the entire database bottom. Granite 3000 5900 m sec basalt 4500 6500 m sec. 2 comparatively poisson s ratio of concrete under static loads is lower than that of concrete upon which dynamic loads are applied.

Then hooke s law can be expressed in matrix form as where is the young s modulus along axis is the shear modulus in direction on the plane whose normal. 1 stress strain curves of untreated sample at 0 10 30 50 and 130 mpa effective stress under dry conditions. Granite is a type of common industrial natural stone. Download high res image 697kb download.

Rubber 0 550. 1 the value of concrete poisson s ratio is possible to vary based on the type of specimen dry wet or saturated and loading conditions. A full bar means this is the highest value in the relevant set. What are the values of modulus of elasticity poisson s ratio for different rocks.

Poisson s ratio sandy soil 0 25 0 4 gravel soil 0 15 0 35 granite 0 1 0 3 sandstone 0 21 0 38 shale 0 2 0 4 limestone 0 18 0 33 chalk 0 35 marble 0 06 0 22. Although the values of poisson s ratio for many materials are close to the initial recommendation of 1 4 by poisson or 1 3 by wertheim it is a well known fact today that its theoretical value for an isotropic material is between 1 and 1 2. Suryakanta february 13 2015 geotechnical rock 7 comments modulus of elasticity of rock. What is poisson s ratio of concrete.

When a sample of material is stretched in one direction it tends to get thinner in the lateral direction and if a sample is compressed in one direction it tends to get thicker in the lateral direction. Download full size image fig.