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The aim of this study was to determine stress concentration factors using finite element software; within the most outstanding results is ANSYS software validation for the determination of concentration factors in flat plates with a central hole subjected to axial load; Since it could be statistically demonstrated that there aren't significant differences between the theoretical data and the data obtained through simulation. Were also obtained plots of stress concentration factors for flat plates with three holes, under the same load; it is noted that if the holes are transversely located, the concentration factor decreases to the extent that the relationship P3 / d increases, but to ensure this correlation it should be prevented that the hole diameter and the hole spacing exceeds a limit value, since if this occurs the point of maximum stress changes the inner to the outer area of the hole because the separation between the hole and the edge of the plate decreases significantly. If the arrangement of the holes is longitudinal it can be seen that the concentration factor decreases to the extent that the ratio d / b increases and additionally the magnitude of the factor is unaffected by the distance between centers of the holes and are quite similar to present a single flat plate with central hole.

Determination of stress concentration factors on flat plates of structural steel