Techno Press
Techno Press

Structural Engineering and Mechanics
  Volume 94, Number 5, June10 2025 , pages 375-383
DOI: https://doi.org/10.12989/sem.2025.94.5.375
 


Numerical investigations of contact behavior in beam to column end plate connections
Abdelhamid Becheur and Patrice Coorevits

 
Abstract
    Beam-to-column connections with end plates exhibit complex interfacial behavior during the loading phase. The contact surfaces evolve progressively into three distinct zones: adherent, slipping, and separated. However, the precise delimitation of these zones remains a challenge because relevant techniques seem specifically insufficient. Our developments using a discrete formulation highlighted the numerical difficulties related to this delimitation. However, a comprehensive characterization of the evolution of these zones was made possible by adding additional kinematic conditions established a posteriori and compared to a detachment threshold whose choice is based on numerically observed similarities. Subsequently, the influence of certain important parameters on the detachment rate was estimated.
 
Key Words
    contact behavior; detachment rate; end plate connection; finite elements; parametric analysis; similarities
 
Address
Abdelhamid Becheur: Research Laboratory of Applied Hydraulic and Environment LRHAE, Faculty of Technology, University of Bejaia, Bejaia, 06000, Algeria
Patrice Coorevits: EPROAD Research Unit, University of Picardie Jules Verne, IUT of Aisne, Saint Quentin, 02100, France
 

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