Parameter identification procedure as a dual boundary control problem for linear elastic materials

Yasuaki Ichikawa, Toshiyuki Ohkami

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

The material parameter identification problem is classified into the inverse and direct formulations. The former method was firstly proposed by Kavanagh (1973). The procedure is as follows: Observed data are built in boundary conditions of the finite element formulation, then by using its inverse relation the elastic constants are obtained. This is a simple method, however, it sometimes gives inaccurate results. The second formulation is based on the least square method. That is, material parameters are identified by minimizing the error defined between observed data and computed results. This method also gives an insufficient solution especially for the case to identify Young's modulus and Poisson's ratio simultaneously. We here propose a new method under the concept of boundary control.

Original languageEnglish
Pages (from-to)35-44
Number of pages10
JournalSoils and Foundations
Volume32
Issue number2
Publication statusPublished - Jun 1 1992
Externally publishedYes

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Geotechnical Engineering and Engineering Geology

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