Auto-adaptive multiblock cycle jump algorithm for fatigue damage simulation of long-span steel bridges

Bin Sun, You Lin Xu, Qing Zhu, Zhaoxia Li

Research output: Journal article publicationJournal articleAcademic researchpeer-review

6 Citations (Scopus)

Abstract

An algorithm is developed for fatigue damage evolution simulation of long-span steel bridges based on continuum damage mechanics (CDM) in this study. The progressive fatigue damage from local component damage evolution to entire structural failure is simulated with nonstandard varying block cycle length, which is automatically obtained during computation to speed up fatigue evolution simulation without user intervention. In this paper, progressive fatigue damage evolution of the Stonecutters cable-stayed bridge due to vehicle loading is simulated by using the proposed algorithm and the bridge model. It shows that the algorithm is effective, and it can improve the computational efficiency of fatigue damage simulation of a large-scale steel bridge.

Original languageEnglish
Pages (from-to)919-928
Number of pages10
JournalFatigue and Fracture of Engineering Materials and Structures
Volume42
Issue number4
DOIs
Publication statusPublished - Apr 2019

Keywords

  • continuum damage mechanics
  • fatigue damage
  • long-span steel bridges
  • stonecutters bridge
  • vehicle loading

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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