Future Microbond Testing – Finite Element Simulation Of Optical Fibers For Strains

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

2 Citations (Scopus)

Abstract

Adhesion is a significant property of fibrous composites since it affects the laminate level performance via micro-mechanics of the layers. The Microbond (MB) test is the most widely adopted micromechanical test to characterize the adhesion for single fiber-matrix interface. This test involves pulling the fiber
out of a droplet against blades, resulting in damage at the fiber matrix interface. The test results show experimental data scattering, which calls for improvement on the MB test. In the current research, an attempt has been made to enhance the MB test by incorporating Fiber Bragg Grating (FBG) sensors for
strain monitoring. This paper presents the Finite Element (FE) modeling and simulation of the MB test with FBG sensors for local strain sensing and improved understanding of the fiber droplet interface. The application of FBG sensors in fibers as a modification to MB testing is well demonstrated with a high-
fidelity 3D FE model. Here, elastic-plastic behavior of the epoxy droplet is taken into consideration and Cohesive Zone Model (CZM) is employed to simulate crack onset and propagation. The study reveals the new data available by strain output in the test system provides more understanding of the interfacial
behaviour.
Original languageEnglish
Title of host publication22nd International Conference on Composites Materials (ICCM22)
Place of PublicationMelbourne, VIC
Pages3730-3741
Number of pages12
ISBN (Electronic)9781925627220
Publication statusPublished - 2019
Publication typeB3 Article in conference proceedings
EventInternational Conference on Composite Materials -
Duration: 1 Jan 1900 → …

Conference

ConferenceInternational Conference on Composite Materials
Period1/01/00 → …

Keywords

  • FBG
  • Microbond
  • Finite element modelling
  • Cohesive zone modelling

Fingerprint

Dive into the research topics of 'Future Microbond Testing – Finite Element Simulation Of Optical Fibers For Strains'. Together they form a unique fingerprint.

Cite this