Load transfer distribution in bolted-sealed joints - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue The Journal of Adhesion Année : 2024

Load transfer distribution in bolted-sealed joints

Résumé

Rubber-like materials such as sealant with recent developments in formulation are widely used in various structural components, especially in aerospace industry with many applications such as the sealing of bolted joints on aircraft. The objective of this paper is to assess the load transfer distribution in bolted-sealed joints through an approach coupling both experimental and numerical tests. Quasi-static and relaxation tests under uniaxial and pure shear loading were carried out to determine the parameters of phenomenological hyperelastic laws and of the generalized Maxwell model for the sealant PR 1782 C2. The fastener is an alloy steel bolt with a protruding head when the substrates are made from aluminum 2024-T3. Experimental and numerical quasi-static tests were then performed on double-lap bonded and bolted-sealed joints under in-plane loading. The numerical tests are done using 2D and 3D Finite Element (FE) models; they involve the visco-hyperelastic behavior previously assessed for the sealant. Accounting for visco-hyperelasticity makes it possible to better estimate the load transfer between bolt and sealant layer. Typically, the bolt load transfer rate is derived from numerical output for different sealant thicknesses. In the considered geometrical joint configuration, the sealant load contribution is between 7 and 13% according to the sealant thickness. Methodology and results provide a solid basis for the fatigue strength prediction of bolted-sealed joints.


Fichier sous embargo
Fichier sous embargo
0 2 18
Année Mois Jours
Avant la publication
mardi 16 juillet 2024
Fichier sous embargo
mardi 16 juillet 2024
Connectez-vous pour demander l'accès au fichier

Dates et versions

hal-04402018 , version 1 (18-01-2024)

Licence

Paternité

Identifiants

Citer

Minh-Nhat To, Eric Paroissien, Frédéric Lachaud, Valérie Nassiet, Bouchra Hassoune, et al.. Load transfer distribution in bolted-sealed joints. The Journal of Adhesion, 2024, ⟨10.1080/00218464.2024.2303455⟩. ⟨hal-04402018⟩
34 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More