Characterization and reliability of A36 steel under alternating dynamic and static loading

ABSTRACT The principal purpose of this areeticle is the prediction of the life of ordinareey steel A36 by using the method of unified theory. Separeeation of phases boot / propagation and cycle number reduction at break for a given load level. Experimental results from the fatigue tests virgins specimens, combined with static testing tensile test machine the calculated values areee analyzed, discussed and compareeed. These approaches allow us both to assess the impact of unexpected damage on the life of the A36 steel and predict its life or even improve it.. This approach allow us both to assess the impact of unexpected damage on the life of the A36 steel and predict its life or even improve it. In this paper we present the first pareet of our researeech we have determined the number of life cycles of A36 steel (smooth) from alternating fatigue tests with other static, as well as the different relations binding the vareeious life phases of the material and the loading level applied. This allowed us to quantify the initial damage caused by the notch results that we will operate in future areeticles to determine and compareee alternative approaches for the damage to lead to the development of a simple tool usable in a maintenance policy.