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Life in a Big City

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Life in a Big City
Modulus of elasticity: The ratio of the stress applied to a body to the strain those results in the body in response to it. The modulus of elasticity of a material is a measure of its stiffness and for most materials remains constant over a range of stress. . Material | Elastic Modulus | | MPa | psi | Steel | 200,000 | 30,000,000 |
Poisson ratio
It is the negative ratio of transverse to axial strain. In fact, when a sample object is stretched (or squeezed), to an extension (or contraction) in the direction of the applied load, it corresponds a contraction (or extension) in a direction perpendicular to the applied load. The ratio between these two quantities is the Poisson's ratio. Material | Poisson's Ratio | Concrete | 0.1 - 0.2 | tainless Steel 18-8 | 0.305 | Steel, cast | 0.265 | Steel, Cold-rolled | 0.287 | Steel, high carbon | 0.295 | Steel, mild | 0.303 |

Thermal expansion It is the tendency of matter to change in volume in response to a change in temperature

Product | Linear Temperature ExpansionCoefficient
- α- | | (10-6 m/m K) | (10-6 in/in oF) |

Concrete | 14.5 | 8.0 | Steel | 13.0 | 7.3 | | | |

Shear Modulus or Modulus of Rigidity Material | Shear Modulus | | (106 psi) | (GPa) | Modulus of Rigidity (or Shear Modulus) is the coefficient of elasticity for a shearing force. It is defined as "the ratio of shear stress to the displacement per unit sample length (shear strain)" .

Concrete | 3.0 | 21 | Structural Steel | 11.5 | 79.3 | Stainless Steel | 11.2 | 77.2 | Steel, Cast | 11.3 | 78 | Steel, Cold-rolled | 10.9 | 75 |

YIELD STRENGTH
The yield strength or yield point of a material is defined in engineering and material science as the stress at which a material begins to deform plastically. Material | Yield strength
(MPa) | Ultimate strength
(MPa) | Density
(g/cm³) | Steel, API 5L X65 (Fikret Mert Veral) | 448 | 531 | 7.8 | Steel, high strength

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