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The objective of this paper is two-fold: (i) to present and discuss a short-term experimental investigation on glass fibre-reinforced polymer (GFRP) single-bolted connections prone to shear-out (SO) failure, and (ii) to describe a reliability-based code calibration (RBCC) for determining optimal partial safety factors to be employed in the design rules prescribed in CEN/TS 19101:2022: “Design of Fiber-Polymer Composite Structures”. Due to the lack of a complete set of experimental data available in the literature exhibiting SO failure, an extensive experimental program was conducted, comprising GFRP specimens manufactured by pultrusion (mostly) and vacuum-assisted resin transfer moulding (VARTM). A detailed description of the test campaign is provided, including material characterisation tests, double-lap connection tests and the corresponding main results. Then, the paper discusses a rigorous RBCC, based on the Joint Committee on Structural Safety (JCSS) methodology, applied to the resistance model adopted in CEN/TS 19101:2022, accounting for material, load, geometric and resistance model variability.

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On the Safe Design of GFRP Single-Bolted Double-Lap Connections Susceptible to Shear-Out Failure

  • 会议论文

  • 发表日期：

    2026年

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  • André D. Martins,
  • Carlos A. Seruti,
  • José Gonilha,
  • João R. Correia,
  • Nuno Silvestre,
  • Ângelo P. Teixeira,
  • Francisco Ferreira

摘要

The objective of this paper is two-fold: (i) to present and discuss a short-term experimental investigation on glass fibre-reinforced polymer (GFRP) single-bolted connections prone to shear-out (SO) failure, and (ii) to describe a reliability-based code calibration (RBCC) for determining optimal partial safety factors to be employed in the design rules prescribed in CEN/TS 19101:2022: “Design of Fiber-Polymer Composite Structures”. Due to the lack of a complete set of experimental data available in the literature exhibiting SO failure, an extensive experimental program was conducted, comprising GFRP specimens manufactured by pultrusion (mostly) and vacuum-assisted resin transfer moulding (VARTM). A detailed description of the test campaign is provided, including material characterisation tests, double-lap connection tests and the corresponding main results. Then, the paper discusses a rigorous RBCC, based on the Joint Committee on Structural Safety (JCSS) methodology, applied to the resistance model adopted in CEN/TS 19101:2022, accounting for material, load, geometric and resistance model variability.