Plastic deformations under initial conditions of contact problem of mechanics (case study of riveted joints)

DOI

10.2991/avent-18.2018.44How to use a DOI?

Keywords

assembly structure, contact problem, riveted joint, elastoplastic forming, residual stresses.

Abstract

The developed finite-element model of the assembly structure of a riveted joint can be used to a) calculate the stressstrain state of joint elements in elastoplastic forming, including rivet point formation; b) take into account residual stresses following elastoplastic deformation under external loading of the assembly structure. The article applies mathematical tools for solving the contact problem of the solid mechanics using a finiteelement method and transforming the global stiffness matrix. The matrix is based on the yield criterion and the state of contact finite elements. The elastoplastic model of materials with nonlinear hardening and the Coulomb-Siebel models of friction were applied. Simufact.forming and Marc were used as software tools. Stress fields with and without residual stresses were compared. The solution of the contact problem of elastoplastic material deformation was validated by comparing with experimental data of well-known researches.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - А.А. Kudryavtsev
PY  - 2018/05
DA  - 2018/05
TI  - Plastic deformations under initial conditions of contact problem of mechanics (case study of riveted joints)
BT  - Proceedings of the International Conference "Aviamechanical engineering and transport" (AVENT 2018)
PB  - Atlantis Press
SP  - 230
EP  - 235
SN  - 2352-5401
UR  - https://doi.org/10.2991/avent-18.2018.44
DO  - 10.2991/avent-18.2018.44
ID  - Kudryavtsev2018/05
ER  -