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Stiffness and slip laws for threaded fasteners subjected to a transversal load

Authors :
Rémi Thanwerdas
Emmanuel Rodriguez
Alain Daidié
Institut Clément Ader (ICA)
Institut National des Sciences Appliquées - Toulouse (INSA Toulouse)
Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3)
Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-IMT École nationale supérieure des Mines d'Albi-Carmaux (IMT Mines Albi)
Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Institut Supérieur de l'Aéronautique et de l'Espace (ISAE-SUPAERO)
Institut Catholique d'Arts et Métiers (ICAM)
Institut Supérieur de l'Aéronautique et de l'Espace (ISAE-SUPAERO)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse)
Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3)
Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-IMT École nationale supérieure des Mines d'Albi-Carmaux (IMT Mines Albi)
Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)
Source :
Advances on Mechanics, Design Engineering and Manufacturing, Advances on Mechanics, Design Engineering and Manufacturing, pp.517-526, 2016, 978-3-319-45780-2. ⟨10.1007/978-3-319-45781-9_52⟩, Lecture Notes in Mechanical Engineering ISBN: 9783319457802
Publication Year :
2016
Publisher :
HAL CCSD, 2016.

Abstract

International audience; The cold expansion process is a technology that is widely used to enhance the fatigue resistance of aircraft metallic parts. The issue analysed in this paper concerns the case when the expansion is carried out through an assembly composed of several sheets. The numerical work conducted was intended to understand the phenomenology of the process within a stiff assembly. In particular, it aimed to analyse the deformation of the sheets and the residual stress fields generated by the process. For this purpose, an axisymmetric finite element model of the split sleeve process was developed, simulating a single expansion performed through a stack of two titanium holes (Ti-6Al-4V). The sheets to be expanded were positioned between two steel plates to simulate the assembly. The model could predict the shape and intensities of the fields within the expanded sections and their global outer shapes. We particularly focused on the phenomena prevailing between sheets. The simulation showed that deformations at the interface were greatly reduced when the stack was stiffened axially. Moreover, high circumferential and axial residual stresses were generated in the sheets. Results were compared with a single hole expanded without axial stiffening.

Details

Language :
English
ISBN :
978-3-319-45780-2
ISBNs :
9783319457802
Database :
OpenAIRE
Journal :
Advances on Mechanics, Design Engineering and Manufacturing, Advances on Mechanics, Design Engineering and Manufacturing, pp.517-526, 2016, 978-3-319-45780-2. ⟨10.1007/978-3-319-45781-9_52⟩, Lecture Notes in Mechanical Engineering ISBN: 9783319457802
Accession number :
edsair.doi.dedup.....a3e342c1ac80e0e4995307df808a18f0
Full Text :
https://doi.org/10.1007/978-3-319-45781-9_52⟩