Post-buckling response of scarf repaired laminates using a refined zigzag element

A. Barut, E. Madenci, A. Tessler

Research output: Contribution to conferencePaper

Abstract

As part of the repair procedure, scarf joints commonly appear in composite structures. However, the scarf repair introduces an imperfection to the structure, thus causing the laminate to skip structural bifurcation, and directly experience post-buckling deformation under in-plane loads. For these reasons, understanding the post-buckling behavior of scarf-repaired laminates that are subjected to in-plane compressive and shear forces is essential to achieving a proper design. Although three-dimensional (3D) finite element models are capable of including the complexities arising from the geometry and presence of discrete adhesive layers between the repair and base materials, a proper aspect ratio between the elements requires a highly refined mesh, making the 3D finite element analysis computationally prohibitive in most practical applications. This study presents an approach that uses the refined zigzag element as an alternative to conventional solid elements when analyzing a composite component with a scarf joint.

Original languageEnglish (US)
DOIs
StatePublished - Feb 28 2014
Event55th AIAA/ASMe/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference - SciTech Forum and Exposition 2014 - National Harbor, MD, United States
Duration: Jan 13 2014Jan 17 2014

Other

Other55th AIAA/ASMe/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference - SciTech Forum and Exposition 2014
CountryUnited States
CityNational Harbor, MD
Period1/13/141/17/14

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Mechanics of Materials
  • Building and Construction
  • Architecture

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    Barut, A., Madenci, E., & Tessler, A. (2014). Post-buckling response of scarf repaired laminates using a refined zigzag element. Paper presented at 55th AIAA/ASMe/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference - SciTech Forum and Exposition 2014, National Harbor, MD, United States. https://doi.org/10.2514/6.2014-0847