Minimum constitutive relation error based static identification of beams using force method

Jia Guo, Izuru Takewaki

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)

Abstract

A new static identification approach based on the minimum constitutive relation error (CRE) principle for beam structures is introduced. The exact stiffness and the exact bending moment are shown to make the CRE minimal for given displacements to beam damages. A two-step substitution algorithm - a force-method step for the bending moment and a constitutive-relation step for the stiffness - is developed and its convergence is rigorously derived. Identifiability is further discussed and the stiffness in the undeformed region is found to be unidentifiable. An extra set of static measurements is complemented to remedy the drawback. Convergence and robustness are finally verified through numerical examples.

Original languageEnglish
Article number012026
JournalJournal of Physics: Conference Series
Volume842
Issue number1
DOIs
Publication statusPublished - 2017 Jun 2
Externally publishedYes
Event12th International Conference on Damage Assessment of Structures, DAMAS 2017 - Kitakyushu, Japan
Duration: 2017 Jul 102017 Jul 12

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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