Modelo de material para perfiles conformado en frío de sección transversal UV de acero a36, para espesores de 10 mm y 12 mm

Abstract

The material model obtained for cold-formed UV cross-section profiles of ASTM A36 steel, for thicknesses of 10 mm and 12 mm, is presented as a versatile and efficient structural solution. This model has been developed considering its mechanical properties and its usefulness in the construction industry due to its resistance and ease of forming. To analyze the impact of the mechanical properties in the cross section of the profile obtained, three types of tests were carried out. In the tensile test, the ASTM E8 standard was applied, evaluating its mechanical properties, taking into account the tensile strength, elastic limit and modulus of elasticity in the specimens of the different sections (wings, back, curves) of the profile. Using the ASTM E10 standard, the hardness test was carried out on specimens extracted for each thickness, determining their hardness in the virgin material and in the cross section of the UV profile. Using the ASTM E-112 standard, the metallographic test was applied, obtaining micrographic photographs of the grains of the virgin material and the affectation in the cross section of the UV profile. As a result, the mechanical tests carried out show a comprehensive view of the mechanical properties in the cross section of the UV profile, highlighting a greater rigidity in the 12 mm profile and a greater impact on the mechanical properties in the curved sections of the profile, reaching maximum stresses. tensile strength of 551.5 MPa and 554.21 MPa for thicknesses of 10 mm and 12 mm.