What values should be used for the Poisson’s ratio of steel materials, such as 31608, Q345R, and Q235B?
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What values should be used for the Poisson’s ratio of steel materials, such as 31608, Q345R, and Q235B?； Names and grades of materials with known Poisson’s ratio: Low-carbon steel Q235: 200–210, 0.24–0.28; Medium-carbon steel 45: 205, 0.24–0.28; Low-alloy steel 16Mn: 200, 0.25–0.30; Alloy steel 40CrNiMoA: 210, 0.25–0.30; Gray cast iron: 60–162, 0.23–0.27; Ductile cast iron: 150–180; Aluminum alloy LY12: 71, 0.33; Hard aluminum alloy: 700.3; Concrete: 15.2–36, 0.16–0.18; Wood (with grain): 9.8–11.8, 0.0539; Wood (against grain): 0.49–0.98
Poisson’s ratio is the ratio of a material’s longitudinal strain to its transverse strain, and it is a property of the material alongside the elastic modulus. For ordinary steel, if there are no actual test data, 0.3 can be used
In design, the Poisson’s ratio of steel is generally 0.3