Abstract

In this article, we first research on the relationship between joint damage evolution and peeling stress distribution of carbon fiber reinforced plastic π adhesive-bonded joints by finite element m...

Highlights

  • Carbon fiber reinforced plastic (CFRP) p adhesivebonded joints have become the principal joint for mutually orthogonal components in aerospace vehicles because bonding does not cause stress concentration resulted from drilling and does not destroy the fiber structure of adherends, and are characterized by a small number of parts and strong design flexibility.[1,2,3]

  • X Ning et al.[15] introduced a crack detection method based on the longitudinal strain distribution measured by embedded Fiber Bragg grating (FBG) to estimate the cracks that occurred at the adhesive interface of the single-lap joints

  • S Jiang et al.[16] proposed a method to measure the elastic modulus of CFRP based on FBG reflectance spectrum analysis

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Summary

Introduction

A Trilaksono et al.[19] studied the relationship between the change of FBG reflectance spectrum and debonding damage evolution of bonded joints. The existing studies based on FBG sensing for damage detection focus on the debonding of adhesive-bonded joints and mainly judge the debonding through the changes of the central wavelength of FBG reflection spectrum while ignoring the gradient information of the stress distribution at the damage parts.

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