PSI - Issue 22

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2018) 000 – 000

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 22 (2019) 93–101

© 2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the First International Symposium on Risk and Safety of Complex Structures and Components organizers Abstract The paper is focused on assessment of stress-strain response of the material of notched components subjected to extreme loading regimes that cause extensive plastic deformations and general yielding. The modification of the Neuber method that allows one to predict maximum local stresses and strains of the notched component when the nominal stress exceeds the yield strength of the material is presented. The influence of the strain hardening exponent on the stress-strain elastoplastic response of the material at the notch zone is assessed. © 2019 The Author(s). Published by Elsevier B.V. Peer-review under responsibility of the ILEE-2019 organizers Peer-review under responsibility of the ILEE-2019 organizers First International Symposium on Risk and Safety of Complex Structures and Components Assessment of Local Stresses and Strains in Notched Components Subjected to Extreme Loading N. Makhutov a , D. Reznikov a * a Mechanical Engineering Research Institute, RAS. 4 Maly Kharitonievsky lane, Moscow,101990, Russia

Keywords: notch, stress concentration factor; strain concentration factor; Neuber rule; general plasticity

1. Introduction Many structural components contain geometrical discontinuities, such as such as fillets, holes, welds, grooves and keyholes that are commonly referred to as notches. When a notched component is loaded, local stress and strain concentrations are generated in the notch zone.

* Corresponding author. Tel.: +7-495-623-5835; fax: +7-495-623-5835. E-mail address: imashreznikoff@yandex.ru.

2452-3216 © 2019 The Author(s). Published by Elsevier B.V. Peer-review under responsibility of the ILEE-2019 organizers

2452-3216 © 2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the First International Symposium on Risk and Safety of Complex Structures and Components organizers 10.1016/j.prostr.2020.01.013