Safety factors of beams subjected to pure bending

Tolun S.

COMPUTERS & STRUCTURES, vol.62, no.2, pp.313-316, 1997 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 62 Issue: 2
  • Publication Date: 1997
  • Doi Number: 10.1016/s0045-7949(96)00197-6
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.313-316
  • Istanbul Technical University Affiliated: No


A procedure is developed to determine the safety factors of straight beams with rectangular cross-sections. To represent material behavior, a variety of stress-strain curves were used. The material of the beams was chosen to possess smooth changing stress-strain relations. The results were compared with those results of beams for which stress-strain relations had been idealized as linear elastic-perfectly plastic. The procedure in determining yield and fully plastic moments utilized a computational technique. Loads were increased incrementally up to rupture and the modified Newton-Raphson method was used to find the stresses. Experiments were performed to prove the validity of the analytic results. The reliability of a system using such structural elements can be predicted with the safety factors developed in this work. Copyright (C) 1996 Elsevier Science Ltd.