Damage detection method by topology optimization based on eigenvalue analysis

Takafumi Nishizu, Akihiro Takezawa, Mitsuru Kitamura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The non-destructive testing is significant in the long life operation of large structure such as ships. In the non-destructive testing, the variation in structural characteristics from the original one to the damaged one is used to identify the damage. In this paper, a damage identification method in non-destructive testing is proposed using difference of eigenvalue between the original structure and the damaged one. Damage is specified by topology optimization that minimizes this difference. An optimization algorithm is constructed based on the topology optimization and MMA. The validity and the usefulness of the proposed method are confirmed by several numerical examples.

Original languageEnglish
Title of host publicationProceedings of the 24th International Ocean and Polar Engineering Conference, ISOPE Busan
PublisherInternational Society of Offshore and Polar Engineers
Pages883-889
Number of pages7
ISBN (Print)9781880653913
Publication statusPublished - 2014
Externally publishedYes
Event24th International Ocean and Polar Engineering Conference, ISOPE 2014 Busan - Busan, Korea, Republic of
Duration: 2014 Jun 152014 Jun 20

Publication series

NameProceedings of the International Offshore and Polar Engineering Conference
ISSN (Print)1098-6189
ISSN (Electronic)1555-1792

Other

Other24th International Ocean and Polar Engineering Conference, ISOPE 2014 Busan
CountryKorea, Republic of
CityBusan
Period14/6/1514/6/20

Keywords

  • Eigenvalue analysis
  • Finite element method
  • MMA
  • Non-destructive inspection
  • Sensitivity analysis
  • SIMP
  • Topology optimization

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Ocean Engineering
  • Mechanical Engineering

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