Analysis of novel hybrid joints for composite struts

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)


This paper considers a novel joining solution for a composite-metal hybrid strut component that predominately experiences axial loads (tension and compression). The hybrid interface proposed may achieve high structural integrity through a mechanical interaction between filament wound fibre-tows and surface features (pins) sculpted onto the metal in the joint region. A methodology to evaluate the proposed joining mechanism is presented through use of a two stage explicit Finite Element Analysis (FEA). Firstly, individual carbon fibre tows were modelled as a chain of one-dimensional beam elements with constant circular cross-section. This allowed for the prediction of the as-manufactured path of the tows on the structure. The fibre-tow beam elements were then converted to continuum elements for the tow cross section. A cylindrical casing of matrix material was then independently meshed. The non-coincident meshes were coupled using the Lagrange Multiplier Method. Joint configurations comprising of different layup sequences were tested virtually. Firstly, to determine if expected tow-matrix interactions were captured through use of Lagrangian constraints and to further provide an indication of their relative performance ranking. Finally, the mechanical performance of the metal-composite hybrid structure was assessed.

Original languageEnglish
Title of host publicationECCM 2018 - 18th European Conference on Composite Materials
Publisher Applied Mechanics Laboratory
ISBN (Electronic)9781510896932
Publication statusPublished - 1 Jan 2020
Event18th European Conference on Composite Materials, ECCM 2018 - Athens, Greece
Duration: 24 Jun 201828 Jun 2018

Publication series

NameECCM 2018 - 18th European Conference on Composite Materials


Conference18th European Conference on Composite Materials, ECCM 2018


  • Digital Elements
  • Hybrid Structures
  • Lagrangian Multiplier Method


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