Eventos Anais de eventos
MECSOL 2019
7th International Symposium on Solid Mechanics
Residual stress distribution in hyperstatic beams
Submission Author:
Paulo Pedro Kenedi , RJ , Brazil
Co-Authors:
Flávio Castro, Paulo Pedro Kenedi, Lucas Vignoli, Ivan Ivanovitsch Thesi Riagusoff
Presenter: Paulo Pedro Kenedi
doi://10.26678/ABCM.MECSOL2019.MSL19-0088
Abstract
The estimative of the cross section residual stress distribution, for partially yielded structures, is na important subject that should be addressed to guarantee the stress analysis modeling correctness. In fact, the lack of the knowledge of residual stress distribution in partially yielded cross sections can possibly lead to an unsafe equipment design. The residual stress distributions for static beams (but not hyperstatic beams) have been extensively studied, using mechanics of solids, habitually for simple cases. Expanding this approach, this work analyses the residual stress distribution, for critical cross sections, of hyperstatic beams. The analytical model is presented, in a detailed way, with the residual stress distribution of a fixed end beam critical cross sections being explicitly plotted. One of the main conclusions of this work is that important levels of residual stresses can grow up, away from external surfaces, where most of the experimental residual stress measurements may not have access, creating a potentially unsafe situation.
Keywords
Residual stresses, hyperstatic structures, analytical model
