Method of deformation analysis for composite structures of soils and masonry stones

Ryota Hashimoto, Mamoru Kikumoto, Tomofumi Koyama, Mamoru Mimrua

Abstract

The coupled numerical manifold method (NMM) and discontinuous deformation analysis (DDA) are enhanced to simulate deformations of continuous soil and discontinuous masonry structures. An elasto-plastic NMM-DDA is formulated that incorporates elasto-plastic constitutive laws into incremental forms of the equation of motion. A node-based uniform strain element is applied to avoid volumetric locking, which often occurs in conventional NMM-DDA. The proposed method is applied to three fundamental boundary value problems: a beam bending problem, a bearing capacity problem of a footing, and a bearing capacity problem of a masonry structure. The method is verified through comparisons with conventional solutions.

Original languageEnglish
Pages (from-to)67-84
Number of pages18
JournalComputers and Geotechnics
Volume82
DOIs
StatePublished - 2017 Feb 1

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Bearing capacity
Plastics
Soils
Composite structures
Boundary value problems
Equations of motion

Keywords

  • Bearing capacity
  • Deformation analysis
  • Elasto-plastic constitutive law
  • NMM-DDA
  • Node-based uniform strain element
  • Soil and masonry composite structure

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Computer Science Applications

Cite this

Method of deformation analysis for composite structures of soils and masonry stones. / Hashimoto, Ryota; Kikumoto, Mamoru; Koyama, Tomofumi; Mimrua, Mamoru.

In: Computers and Geotechnics, Vol. 82, 01.02.2017, p. 67-84.

Research output: Contribution to journalArticle

Hashimoto, Ryota; Kikumoto, Mamoru; Koyama, Tomofumi; Mimrua, Mamoru / Method of deformation analysis for composite structures of soils and masonry stones.

In: Computers and Geotechnics, Vol. 82, 01.02.2017, p. 67-84.

Research output: Contribution to journalArticle

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AB - The coupled numerical manifold method (NMM) and discontinuous deformation analysis (DDA) are enhanced to simulate deformations of continuous soil and discontinuous masonry structures. An elasto-plastic NMM-DDA is formulated that incorporates elasto-plastic constitutive laws into incremental forms of the equation of motion. A node-based uniform strain element is applied to avoid volumetric locking, which often occurs in conventional NMM-DDA. The proposed method is applied to three fundamental boundary value problems: a beam bending problem, a bearing capacity problem of a footing, and a bearing capacity problem of a masonry structure. The method is verified through comparisons with conventional solutions.

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