Low cycle fatigue of components manufactured by rod extrusion: Experiments and modeling

The performance of formed components is significantly influenced by the initiation of ductile damage. Preceding forming operations, for instance, affect the service life determined in fatigue tests. In the current investigation, the effect of ductile damage in forming is isolated by changing the sho...

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Main Authors: Kai Langenfeld, Lars Lingnau, Jan Gerlach, Patrick Kurzeja, Robin Gitschel, Frank Walther, Tobias Kaiser, Till Clausmeyer
Format: Article
Language:English
Published: Elsevier 2023-11-01
Series:Advances in Industrial and Manufacturing Engineering
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666912923000193
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author Kai Langenfeld
Lars Lingnau
Jan Gerlach
Patrick Kurzeja
Robin Gitschel
Frank Walther
Tobias Kaiser
Till Clausmeyer
author_facet Kai Langenfeld
Lars Lingnau
Jan Gerlach
Patrick Kurzeja
Robin Gitschel
Frank Walther
Tobias Kaiser
Till Clausmeyer
author_sort Kai Langenfeld
collection DOAJ
description The performance of formed components is significantly influenced by the initiation of ductile damage. Preceding forming operations, for instance, affect the service life determined in fatigue tests. In the current investigation, the effect of ductile damage in forming is isolated by changing the shoulder opening angle in forward rod extrusion. Forming-induced ductile damage is then related to measurements of void area fraction, density and Young’s modulus. Subsequent fatigue tests in the low cycle range indicate that the service life of the extruded components can be improved through a reduction of the forming-induced damage. A novel constitutive model considering forming-induced damage and fatigue damage is proposed to account for the observed behavior in axial fatigue tests of extruded components. The non-local ductile damage formulation is formulated in the framework of Generalized Standard Materials. Kinematic and isotropic hardening are considered. Based on earlier work of Lemaitre and Desmorat, the fatigue damage initiation criterion is extended to take the observed mechanical behavior in low cycle axial fatigue tests of formed components into account. The extended model is able to capture the effect of forming-induced damage on the service life.
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spelling doaj.art-ea5a11bdfddb41f089db4a72ea2fdaa42023-11-17T05:28:31ZengElsevierAdvances in Industrial and Manufacturing Engineering2666-91292023-11-017100130Low cycle fatigue of components manufactured by rod extrusion: Experiments and modelingKai Langenfeld0Lars Lingnau1Jan Gerlach2Patrick Kurzeja3Robin Gitschel4Frank Walther5Tobias Kaiser6Till Clausmeyer7Institute of Mechanics, TU Dortmund University, Leonhard-Euler-Str. 5, 44227 Dortmund, GermanyChair of Materials Test Engineering, TU Dortmund University, Baroper Str. 303, 44227 Dortmund, GermanyInstitute of Forming Technology and Lightweight Components, TU Dortmund University, Baroper Str. 303, 44227 Dortmund, GermanyInstitute of Mechanics, TU Dortmund University, Leonhard-Euler-Str. 5, 44227 Dortmund, GermanyInstitute of Forming Technology and Lightweight Components, TU Dortmund University, Baroper Str. 303, 44227 Dortmund, GermanyChair of Materials Test Engineering, TU Dortmund University, Baroper Str. 303, 44227 Dortmund, GermanyInstitute of Mechanics, TU Dortmund University, Leonhard-Euler-Str. 5, 44227 Dortmund, GermanyInstitute of Forming Technology and Lightweight Components, TU Dortmund University, Baroper Str. 303, 44227 Dortmund, Germany; Corresponding author.The performance of formed components is significantly influenced by the initiation of ductile damage. Preceding forming operations, for instance, affect the service life determined in fatigue tests. In the current investigation, the effect of ductile damage in forming is isolated by changing the shoulder opening angle in forward rod extrusion. Forming-induced ductile damage is then related to measurements of void area fraction, density and Young’s modulus. Subsequent fatigue tests in the low cycle range indicate that the service life of the extruded components can be improved through a reduction of the forming-induced damage. A novel constitutive model considering forming-induced damage and fatigue damage is proposed to account for the observed behavior in axial fatigue tests of extruded components. The non-local ductile damage formulation is formulated in the framework of Generalized Standard Materials. Kinematic and isotropic hardening are considered. Based on earlier work of Lemaitre and Desmorat, the fatigue damage initiation criterion is extended to take the observed mechanical behavior in low cycle axial fatigue tests of formed components into account. The extended model is able to capture the effect of forming-induced damage on the service life.http://www.sciencedirect.com/science/article/pii/S2666912923000193Rod extrusionLow cycle fatigueDuctile damageDamage modelFatigue model
spellingShingle Kai Langenfeld
Lars Lingnau
Jan Gerlach
Patrick Kurzeja
Robin Gitschel
Frank Walther
Tobias Kaiser
Till Clausmeyer
Low cycle fatigue of components manufactured by rod extrusion: Experiments and modeling
Advances in Industrial and Manufacturing Engineering
Rod extrusion
Low cycle fatigue
Ductile damage
Damage model
Fatigue model
title Low cycle fatigue of components manufactured by rod extrusion: Experiments and modeling
title_full Low cycle fatigue of components manufactured by rod extrusion: Experiments and modeling
title_fullStr Low cycle fatigue of components manufactured by rod extrusion: Experiments and modeling
title_full_unstemmed Low cycle fatigue of components manufactured by rod extrusion: Experiments and modeling
title_short Low cycle fatigue of components manufactured by rod extrusion: Experiments and modeling
title_sort low cycle fatigue of components manufactured by rod extrusion experiments and modeling
topic Rod extrusion
Low cycle fatigue
Ductile damage
Damage model
Fatigue model
url http://www.sciencedirect.com/science/article/pii/S2666912923000193
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AT patrickkurzeja lowcyclefatigueofcomponentsmanufacturedbyrodextrusionexperimentsandmodeling
AT robingitschel lowcyclefatigueofcomponentsmanufacturedbyrodextrusionexperimentsandmodeling
AT frankwalther lowcyclefatigueofcomponentsmanufacturedbyrodextrusionexperimentsandmodeling
AT tobiaskaiser lowcyclefatigueofcomponentsmanufacturedbyrodextrusionexperimentsandmodeling
AT tillclausmeyer lowcyclefatigueofcomponentsmanufacturedbyrodextrusionexperimentsandmodeling