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July 29, 2026PolymersOpen Access

Investigation of Embedded FBG Response in Polymer Composites: Strain Transfer Mechanism and Interfacial Damage Under Multiaxial Loading

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Authors

XYX F YuZCZihe CaoDCDongfeng Cao

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Overview

Randomized trial investigates strain transfer mechanisms and interfacial damage in polymer composites, indicating improvements for structural health monitoring.

Key Points

  • This study aims to improve the accuracy of FBGs in measuring strain under multiaxial loading in polymer composites.
  • Developed a framework for axial strain sensitivity considering multiaxial strain states.
  • Integrated analytical strain transfer principle with opto-mechanical models of FBGs.
  • Validated responses under hydrostatic pressure, biaxial compression, and tension through experimental tests.
  • Demonstrated that conventional sensitivity coefficients lead to measurement errors in multiaxial states.
  • Validated strong influence of interfacial bonding on FBG response with specific loading conditions.

Cite This Study

Yu et al. (2026) studied this question.

synapsesocial.com/papers/6a69a2d4c8da07d9defa6c47https://doi.org/10.3390/polym18151833
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