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Advances in Aircraft and Spacecraft Science   Volume 5, Number 5, September 2018, pages 595-613
DOI: https://doi.org/10.12989/aas.2018.5.5.595
 
Damage of bonded, riveted and hybrid (bonded/riveted) joints, Experimental and numerical study using CZM and XFEM methods
M.C. Ezzine, A. Amiri, M. Tarfaoui and K. Madani

 
Abstract     [Full Text]
    The objective of our study is to analyze the behavior of bonded, riveted and hybrid (bonded / riveted) steel / steel assemblies by tensile tests and to show the advantage of a hybrid assembly over other processes. the finite element method with the ABAQUS numerical code was used to model the fracture behavior of the different assemblies. Cohesive zone models (CZM) have been adopted to model crack propagation in bonded joints using a bilinear tensile separation law implemented in the ABAQUS finite element code. The riveted assemblies were modeled with the XFEM damage method identified in this ABAQUS numerical code. Both CZM and XFEM methods are combined to model hybrid assemblies. The results are consistent with the experimental results and make it possible to guarantee the validity of the applied numerical model. The use of a hybrid assembly shows a high resistance compared to other conventional methods, where the number of rivets has been highlighted. The use of the hybrid assembly improves mechanical strength and increases service life compared to a single lap joint and a riveted joint.
 
Key Words
    single lap joint; riveted joint; hybrid joint; cohesive zone model (CZM); XFEM; steel E24
 
Address
M.C. Ezzine, A. Amiri, and K. Madani: Laboratoire Mécanique Physique des Matériaux (LMPM), Department of Mechanical Engineering, University of Sidi Bel Abbes, Sidi Bel Abbes 22000, Algeria
M. Tarfaoui: ENSTA Bretagne, MSN/LBMS/DFMS, 2 Rue François Verny, 29806, Brest, CEDEX 9, France
 

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