RCC Structure/Unit six/ Introduction to steel structure

The stress-strain curve for mild steel is a graphical representation of the relationship between the stress applied to the material and the strain it experiences. This curve is crucial in understanding the mechanical properties of mild steel, such as its yield strength, ultimate tensile strength, and ductility. The curve typically begins with a linear region where stress and strain are proportional, indicating elastic deformation. Beyond the yield point, the curve deviates from linearity, showing plastic deformation where the material undergoes permanent changes. The peak of the curve represents the ultimate tensile strength, followed by a decrease in stress, leading to fracture.