The Role of Interlayer Interfaces in 3D-Printed Elements (2026-02)¶

A Nonlinear FEM-Based Study

Giulivo Gianluca, Menna Costantino
Contribution - Proceedings of the 4^th fib Symposium on Concrete and Concrete Structures, pp. 69 - 76

Abstract

This study investigates the structural behavior of 3D-printed concrete (3DPC), focusing on the nonlin-earities related to both the material’s plastic response and the layered nature of the printing process, particularly the interfaces between layers. A finite element modeling (FEM) framework is developed to simulate the response of an unreinforced wall and a wall panel subjected to diagonal compression testing, including nonlinear material and interface behavior. The model is calibrated against experi-mental data. Results highlight the key role of interface properties in governing failure mechanisms and identify conditions under which a simplified modeling approach - neglecting interface nonlinearities - may be acceptable.

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BibTeX

@inproceedings{giul_menn.2025.TRoIIi3PE,
  author            = "Gianluca Giulivo and Costantino Menna",
  title             = "The Role of Interlayer Interfaces in 3D-Printed Elements: A Nonlinear FEM-Based Study",
  year              = "2025",
  pages             = "69--76",
  booktitle         = "Proceedings of the 4th fib Symposium on Concrete and Concrete Structures",
}

Formatted Citation

IEEE

G. Giulivo and C. Menna, “The Role of Interlayer Interfaces in 3D-Printed Elements: A Nonlinear FEM-Based Study”, in Proceedings of the 4^th fib Symposium on Concrete and Concrete Structures, 2025, pp. 69–76.

CMOS

Giulivo, Gianluca, and Costantino Menna. “The Role of Interlayer Interfaces in 3D-Printed Elements: A Nonlinear FEM-Based Study”. In Proceedings of the 4^th Fib Symposium on Concrete and Concrete Structures, 69–76, 2025.