Damage detection and assessment of structures from static response

Research output: Contribution to journalArticle

137 Citations (Scopus)

Abstract

A damage detection and assessment algorithm is developed based on a parameter estimation with an adaptive parameter grouping scheme. Damage is characterized by a reduction in a constitutive property of a parameterized finite-element model between two time-separated inferences. We assume that the baseline parameter values are known. An adaptive parameter grouping scheme is proposed to localize damage in a structural system for which the measured data are sparse. A data perturbation scheme is proposed both for the baseline structure, to establish the damage threshold above which damage can be confidently discerned from noise, and for the damaged structure, to compute the damage indices. To examine and illustrate the damage assessment algorithm, a numerical simulation study on a planar bowstring truss structure is performed.

Original languageEnglish (US)
Pages (from-to)568-576
Number of pages9
JournalJournal of Engineering Mechanics
Volume123
Issue number6
StatePublished - Jun 1997
Externally publishedYes

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Damage detection
Parameter estimation
Computer simulation

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Damage detection and assessment of structures from static response. / Hjelmstad, Keith; Shin, S.

In: Journal of Engineering Mechanics, Vol. 123, No. 6, 06.1997, p. 568-576.

Research output: Contribution to journalArticle

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