Modelo de material para perfiles conformado en frío de sección transversal tipo UV de acero a36, para espesores de 6 mm y 8 mm

Abstract

In order to determine the variation of mechanical properties such as hardness, yield stress, modulus of elasticity, maximum load, grain size variation and elongation percentage, comparing them in curved areas and flat areas of a cold-formed profile of UV type section. Tensile, hardness and micrographic tests were developed, ASTM A-36 steel material was used with thicknesses of 6 mm and 8 mm, obtaining specimens for their respective tests under ASTM E8 standards for tensile tests, ASTM E112 for micrographic and the hardness method used was Brinell HBW for hardness tests with ASTM E10 standard, when performing the tests and trials on the virgin material and the cold-formed material of UV type section, it was determined that there are better results of mechanical properties in the curved areas of the cold-formed profile due to its stress concentration, this much more specifically for the specimen of higher thickness for its cross-sectional area, after comparing all the results obtained it was observed that the maximum value of yield stresses in its curved part was 482.81 MPa compared to its wings that have a minimum value of 210.93 MPa. As a result, it was proved that there is a variation of mechanical properties after a cold forming process for an A-36 steel material, which will be very helpful for future research.