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A. Pagani¹, J. Shen¹ and M. Rui Arruda²

¹Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy
²Department of Structures, National Laboratory of Civil Engineering, Lisbon, Portugal

A. Pagani, J. Shen, M. Rui Arruda, "Failure Analysis of Quasi-Brittle Materials Using Coupled Refined Finite Elements and Peridynamics Incorporating Cohesive Effects", in P. Iványi, J. Kruis, B.H.V. Topping, (Editors), "Proceedings of the Eighteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 10, Paper 12.1, 2025,

Keywords: finite elements, peridynamics, nonlocal computational models, fracture, coupled local-nonlocal models, damage modelling.

Abstract

This work investigates the crack propagation and failure behavior of quasi-brittle materials by combining two different numerical models. The critical region, where damage or cracks may occur, is modeled using three-dimensional (3D) bond-based peridynamics (PD). The remaining elastic region is modeled with one-dimensional (1D) higher-order beam elements based on the Carrera Unified Formulation (CUF). The coupling between the two models is achieved through Lagrange multipliers. An improved damage model is proposed in PD to account for the cohesive effects of quasi-brittle materials. In addition, an implicit displacement control method is employed in PD to improve convergence for quasi-brittle failure. The proposed approach is validated through comparison with experimental data. The results show that the model can accurately capture crack propagation and load–displacement curves in an efficient manner.

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Front Page Browse CCC CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Conferences ISSN 2753-3239 CCC: 10 PROCEEDINGS OF THE EIGHTEENTH INTERNATIONAL CONFERENCE ON CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING COMPUTING Edited by: P. Iványi, J. Kruis and B.H.V. Topping Paper 12.1 Failure Analysis of Quasi-Brittle Materials Using Coupled Refined Finite Elements and Peridynamics Incorporating Cohesive Effects A. Pagani¹, J. Shen¹ and M. Rui Arruda² ¹Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy ²Department of Structures, National Laboratory of Civil Engineering, Lisbon, Portugal Full Bibliographic Reference for this paper A. Pagani, J. Shen, M. Rui Arruda, "Failure Analysis of Quasi-Brittle Materials Using Coupled Refined Finite Elements and Peridynamics Incorporating Cohesive Effects", in P. Iványi, J. Kruis, B.H.V. Topping, (Editors), "Proceedings of the Eighteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 10, Paper 12.1, 2025, Keywords: finite elements, peridynamics, nonlocal computational models, fracture, coupled local-nonlocal models, damage modelling. Abstract This work investigates the crack propagation and failure behavior of quasi-brittle materials by combining two different numerical models. The critical region, where damage or cracks may occur, is modeled using three-dimensional (3D) bond-based peridynamics (PD). The remaining elastic region is modeled with one-dimensional (1D) higher-order beam elements based on the Carrera Unified Formulation (CUF). The coupling between the two models is achieved through Lagrange multipliers. An improved damage model is proposed in PD to account for the cohesive effects of quasi-brittle materials. In addition, an implicit displacement control method is employed in PD to improve convergence for quasi-brittle failure. The proposed approach is validated through comparison with experimental data. The results show that the model can accurately capture crack propagation and load–displacement curves in an efficient manner. download the full-text of this paper (PDF, 2476 Kb) go to the previous paper go to the next paper return to the table of contents return to the volume description
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