Paper Title:

FEA of the Influence of Assembly Parameters on the Fatigue Life of Metal-Composite Bolted Joints

Periodical Materials Science Forum (Volume 713)
Main Theme Advances in Non Conventional Materials Processing Technologies
Edited by M. Marcos, J.A. Sánchez and J. Salguero
Pages 73-78
DOI 10.4028/www.scientific.net/MSF.713.73
Citation I. Álvarez et al., 2012, Materials Science Forum, 713, 73
Online since February, 2012
Authors I. Álvarez, F.J. Doblas, C. Vallellano, A. Portal, P.J. Arroyo
Keywords Blind Bolt, Fatigue Life, FEM, Hybrid Joint Metal/CFRP
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Abstract

This paper presents a numerical analysis of the influence on the fatigue life of hybrid metal/CFRP bolted joints of some deviations in certain assembly parameters. Two types of hybrid joints typically used in aircraft are analyzed, the Ti-6Al-4V/CFRP and the Al-2024-T3/CFRP, riveted with blind bolts. The parameters analyzed are: the thickness of sealant between metal sheet and composite laminate, the angle of countersunk and the adjustment or chamfer at the countersunk-drill zone. The analysis highlights critical areas for fatigue failure and the relative influence of these parameters on the fatigue resistance of the joint.