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May 15, 2025Finite Elements in Analysis and DesignOpen Access

Modal analysis and superposition for dynamic response of structures with discontinuities using HybriDFEM

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Authors

IBIgor BouckaertAPAdrien PiedboeufMGMichele Godio

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Overview

This randomized trial demonstrates enhanced dynamic response assessment in structures using modal analysis and superposition, indicating improvements in structural evaluation techniques.

Key Points

  • The research aims to enhance the dynamic characterization of structures using discrete models and modal superposition.
  • Developed a 2D discrete formulation within a finite element framework as HybriDFEM.
  • Computed mass matrix, natural frequencies, mode shapes, and dynamic contribution factors.
  • Validated the formulation with comparisons to beam theories and refined finite element models.
  • The new formulation accurately tracks natural frequency evolution under nonlinear conditions.
  • It integrates discrete and finite elements effectively for improved modal analysis.
  • Validation examples consistently showed better performance compared to traditional methods.

Cite This Study

Bouckaert et al. (2025) studied this question.

synapsesocial.com/papers/6a2086b7cd682a52c6f8a37ehttps://doi.org/10.1016/j.finel.2025.104360
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