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Lookup NU author(s): Dr Burak Cerik, Dr Do Kyun KimORCiD
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
The development of numerical simulations is potentially useful in predicting the most suitable manufacturing processes and ultimately improving product quality. Seamless pipes are manufactured by a rotary piercing process in which round billets (workpiece) are fed between two rolls and pierced by a stationary plug. During this process, the material undergoes severe deformation which renders it impractical to be modelled and analysed with conventional finite element methods. In this paper, three-dimensional numerical simulations of the piercing process are performed with an arbitrary Lagrangian–Eulerian (ALE) formulation in LS-DYNA software. Details about the material model as well as the elements’ formulations are elaborated here, and mesh sensitivity analysis was performed. The results of the numerical simulations are in good agreement with experimental data found in the literature and the validity of the analysis method is confirmed. The effects of varying workpiece velocity, process temperature, and wall thickness on the maximum stress levels of the product material/pipes are investigated by performing simulations of sixty scenarios. Three-dimensional surface plots are generated which can be utilized to predict the maximum stress value at any given combination of the three parameters. View Full-Text
Author(s): Topa A, Cerik BC, Kim DK
Publication type: Article
Publication status: Published
Journal: Journal of Marine Science and Engineering
Year: 2020
Volume: 8
Issue: 10
Online publication date: 27/09/2020
Acceptance date: 25/09/2020
Date deposited: 07/11/2020
ISSN (electronic): 2077-1312
Publisher: MDPI AG
URL: https://doi.org/10.3390/jmse8100756
DOI: 10.3390/jmse8100756
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