Hybrid moiré method for three-dimensional stress analysis

S. Ri, T. Numayama, Masumi Saka

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

Abstract

For evaluating reliability of structures, it is important to know the distributions of displacement, strain and stress. In this paper, a hybrid moiré method, which combines full-field measurement technique, i.e. sampling moiré method, and finite element (FE) analysis for determining the boundary conditions of loading force and position is proposed. The distribution of displacement measured by sampling moiré method is compared with the analyzed result based on elastic FE analysis at assumptive boundary conditions. The error between the displacement distributions of experimentally obtained and FE analysis is corrected so as to make it minimum by changing the boundary conditions of loading force and position. Experimental results show that the loading force and position can be evaluated accurately using the proposed method. Once the appropriate boundary conditions are determined, three-dimensional distributions of strain and stress are easily obtained by FE analysis for evaluating reliability of structures.

Original languageEnglish
Title of host publication12th International Conference on Fracture 2009, ICF-12
Pages2615-2623
Number of pages9
Volume4
Publication statusPublished - 2009 Dec 1
Event12th International Conference on Fracture 2009, ICF-12 - Ottawa, ON, Canada
Duration: 2009 Jul 122009 Jul 17

Other

Other12th International Conference on Fracture 2009, ICF-12
CountryCanada
CityOttawa, ON
Period09/7/1209/7/17

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

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  • Cite this

    Ri, S., Numayama, T., & Saka, M. (2009). Hybrid moiré method for three-dimensional stress analysis. In 12th International Conference on Fracture 2009, ICF-12 (Vol. 4, pp. 2615-2623)