A fast shape inversion method of flaws in materials for infrastructures

M. Kitahara, M. Onishi, K. Nakahata, M. Yamada

Research output: Contribution to journalConference articlepeer-review

Abstract

The Born inverse scattering method is applied to the shape reconstruction of flaws in the concrete materials. To accelerate the inversion process, the algorithm of the fast Fourier transform is introduced in the integration process of the scattering amplitude. The concrete specimens with flaw models are prepared and the scattered waveforms from flaws are acquired in the pulse-echo mode. The shape of flaws is reconstructed by using the measured waveforms and the performance of the inversion method is demonstrated experimentally.

Original languageEnglish
Pages (from-to)981-986
Number of pages6
JournalKey Engineering Materials
Volume261-263
Issue numberII
Publication statusPublished - 2004 Jan 1
EventAdvances in Fracture and Failure Prevention: Proceedings of the Fifth International Conference on Fracture and Strength of Solids (FEOFS2003): Second International Conference on Physics and Chemistry of Fracture and Failure Prevention (2nd ICPCF) - Sendai, Japan
Duration: 2003 Oct 202003 Oct 22

Keywords

  • Concrete material
  • Fast inversion
  • Linearized inverse scattering method
  • Shape reconstruction
  • Ultrasonics

ASJC Scopus subject areas

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

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