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The contribution at hand entails the introduction of a newly developed element formulation in the framework of the finite element method, designed to couple a 1D line element with a 3D tetrahedral element, enabling the modeling of 1D fibers embedded in a 3D concrete matrix. To facilitate testing of the element formulation, a custom mesh generator with an integrated sorting algorithm has been developed. The current capabilities of the model are demonstrated, suggesting that modeling embedded fibers with 1D line elements is a suitable approach for attempting to efficiently represent fiber-reinforced concrete in a computational setting.

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Simulation of Short Fibers Embedded in a Concrete Matrix and Modeling of Their Pull-Out

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  • 发表日期：

    2025年

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  • Paula Poriete,
  • Verena Curoşu,
  • Stefan Löhnert

摘要

The contribution at hand entails the introduction of a newly developed element formulation in the framework of the finite element method, designed to couple a 1D line element with a 3D tetrahedral element, enabling the modeling of 1D fibers embedded in a 3D concrete matrix. To facilitate testing of the element formulation, a custom mesh generator with an integrated sorting algorithm has been developed. The current capabilities of the model are demonstrated, suggesting that modeling embedded fibers with 1D line elements is a suitable approach for attempting to efficiently represent fiber-reinforced concrete in a computational setting.