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IASS 2016 Tokyo Symposium: Spatial Structures in the 21st Century


IASS Symposium 2016

SESSION: Metal Spatial Structures

Cyclic shear tests of steel hexagonal latticed plates Part II: Evaluation of test result using FEA

< Table of Contents for Metal Spatial Structures
  • Proceedings Name: IASS 2016 Tokyo Symposium: Spatial Structures in the 21st Century
  • ISSN: (Electronic Version) 2518-6582
  • Session: Metal Spatial Structures
  • Pages: 9
  • Title: Cyclic shear tests of steel hexagonal latticed plates Part II: Evaluation of test result using FEA
  • Author(s): Ryosuke Miyazawa, Tetsuo Yamashita, Hiroyuki Oyobe
  • Keywords: finite element analysis, out-of-plane deformation, generalized slenderness, plastic hinge
Abstract
In part II, detailed analysis on the cyclic loading test using finite element analysis (FEA) is demonstrated. First, the hinges occur at the ends of vertical members and the actual fracture points show good agreement with the points where the accumulated plastic strain concentrates. Second, it is found that bending moment is predominant in the hexagonal grid plates by observing the MN instruction curves on the vertical and diagonal members. However, the axial stress in the voronoi and anisotropic hexagonal grid plates is larger than that in the regular hexagonal plates. It is guessed that the larger axial stress gives some influence on the larger out-of-plane deformation observed in the experiments of these plates. Moreover, we consider that the generalized slenderness can be the index to determine the boundary of onset of significant out-of-plane deformation. The boundary lies between 0.23 and 0.28.

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