Advisor(s)
Abstract(s)
This study proposes alternative methods to estimate the stress intensity factors (SIF) of
notched round components having an axial hole and subjected to an axial force or a bending
moment. The method is based on analytical equations proposed by (Harris 1997) and on
alternative formulation using finite element method (FEM). The objective of this work is a
contribution in fracture mechanics applied to tubular systems with typical defects generated in
service or a consequence of the fabrication method. Computational effort is saved with this
element in the evaluation of the stress field across the section carrying the defect. Numerical
examples are presented to illustrate the proposed method referring to tubular structures with
different end constraints and containing a circumferential notch. The comparisons with the
elastic finite element showed satisfactory results and good agreement with others references.
Description
Keywords
Stress intensity factor Notch Bending moment Tubular structure
Citation
Fonseca, E.M.M.; Melo, F.J.M.Q. de; Valente, R.A.F. (2006). Stress intensity factors for notched round bars using FEM. In 5th International Conference on Mechanics and Materials in Design. Porto. 2006. ISBN-972- 826-10-9-X