Fiber orientation effect in the dynamic buckling of debonded regions in laterally loaded FRP strengthened walls

Dvir Elmalich, Oded Rabinovitch

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper studies the effect of lamination and fiber orientation on the geometrically nonlinear dynamic response of debonded regions in walls strengthened with FRP. The paper adopts an analytical/numerical approach and uses a specially tailored finite element formulation for the layered structure. By means of this analytical/numerical tool, two strengthening layouts for a wall segment subjected to a dynamic shear loading are compared. In the first layout, the fibers are oriented along the width and height of the segment and in the second one, they are oriented along its diagonals. The analysis reveals that the two layouts are involved with significantly different critical points and significantly different dynamic post-buckling behaviors. Specifically, it shows that the diagonal layout, which better serves the shear loading scenario, is involved with a much smaller critical displacement and a dynamic post-buckling behavior that is governed by the stiffer compressed and tensed diagonals.

Original languageEnglish
Title of host publicationMechanics of Masonry Structures Strengthened with Composite Materials
EditorsAngelo Di Tommaso, Cristina Gentilini, Giovanni Castellazzi
Pages470-477
Number of pages8
ISBN (Electronic)9783038352037
DOIs
StatePublished - 2015
Event4th International Conference on Mechanics of Masonry Structures Strengthened with Composite Materials, MuRiCO 2014 - Ravenna, Italy
Duration: 9 Sep 201411 Sep 2014

Publication series

NameKey Engineering Materials
Volume624

Conference

Conference4th International Conference on Mechanics of Masonry Structures Strengthened with Composite Materials, MuRiCO 2014
Country/TerritoryItaly
CityRavenna
Period9/09/1411/09/14

Keywords

  • Composite materials
  • Debonding
  • Dynamic response
  • Geometrical nonlinearity
  • Walls

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • General Materials Science

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