A) 0
B) 0.25
C) 0.5
D) 1

According to IS 456:2000, Clause 6.2, Poisson’s ratio is defined as the ratio of transverse strain to axial strain. For a material that does not change in volume under stress, the transverse and axial strains must be equal in magnitude but opposite in sign. Therefore, the Poisson’s ratio for such a material must be 0.5.

Table 6 of IS 456:2000 provides typical Poisson’s ratio values for common materials used in concrete structures. For example, the Poisson’s ratio for structural steel is 0.3 and for concrete is 0.2.

The correct option is C) 0.5

This indicates that the material is incompressible and does not change volume when loaded in one direction. Rubber exhibits such behavior and has a Poisson’s ratio of around 0.5.

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See also  The internal diameter of a cast iron pipe is 300 mm and its thickness is 10 mm. If the pipe is supported at two points 8 m apart, what is the internal cross-sectional area of the pipe as per IS:1239 (Part 1)?
N Lavanya

Lavanya is a passionate content writer about Structural Design, Grouting, Columns, Beams etc. She has 5 years of experience in teaching in Civil Engg. She enjoys writing complete guides and tips. Her passion is in building materials, construction standards, foundation design and building codes.

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