Static response of asymmetrically damaged metallic strands: Experimental and numerical approach

Juan Felipe Beltrán, Eduardo Nuñez, Fernanda Nuñez, Ismael Silva, Tomás Bravo, Ricardo Moffat

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

In this study, the effect of the presence of broken wires (damage) asymmetrically distributed on metallic strands surfaces on their static response is assessed. To this end, a general mechanical model for multilayered strands is presented, in which damaged strands are treated as a 1D nonlinear beam under uncoupled biaxial bending and axial load (NLBM). The NLBM is validated by comparisons with the results obtained from an experimental program especially designed for studying the effect of surface damage distribution on strands response and 3D nonlinear finite element simulations. Analyses are carried out on two strand constructions: 1 × 7 and 1 × 19, in which the damage levels and strand diameters vary from 5% to 40% and from 3.5 mm to 22.2 mm, respectively. Results indicate that the NLBM accurate predicts the static response (residual strength, stiffness, axial strain field, and deformed configuration) of the asymmetrically damaged strands, achieving good computational efficiency and numerical robustness.

Original languageEnglish
Pages (from-to)538-554
Number of pages17
JournalConstruction and Building Materials
Volume192
DOIs
StatePublished - 20 Dec 2018

Keywords

  • Asymmetric damaged strands
  • Experimental test
  • Finite element simulation
  • Numerical model
  • Static capacity curve
  • Surface damage

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