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Structural Steel - Theory & Concepts

Grades, mechanical properties, and testing of structural steel.

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Hooke's Law: Structural Steel

Adjust axial strain (ε\varepsilon) to compute the resulting stress (σ\sigma) within the linear elastic region.

Axial Strain ($\varepsilon$)0.100%
No Strain (0.0)Elastic Limit (0.002)
Young's Modulus ($E$): Structural steel exhibits a constant modulus of elasticity of approximately 200,050 MPa200,050\text{ MPa} (200 GPa200\text{ GPa}) in the elastic range.

Tensile Specimen

Tensile coupon stretching under loading+15.0px
Elastic Deformation

Hooke's Law Calculation

σ=Eε\sigma = E \cdot \varepsilon
σ=200,0000.0010\sigma = 200,000 \cdot 0.0010
σ=200 MPa\sigma = 200 \text{ MPa}
Stress is strictly proportional to strain.