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Evaluation of barreling and friction in uniaxial compression test: a kinematic analysis

Version 2 2024-06-13, 11:55
Version 1 2019-05-16, 13:11
journal contribution
posted on 2024-06-13, 11:55 authored by S Solhjoo, S Khoddam
© 2019 Elsevier Ltd Barreling compression test is an important tool for characterizing the mechanical responses of deformed material. This test also serves for studying the interfacial friction between the tool and workpiece, based on the only available method of Avitzur's “limit analysis of disc and strip forging”. This method was found to be satisfactory for low friction conditions; however, it has remained to be examined in depth. In the present work, Avitzur model is thoroughly investigated, and its applicability and limitations are discussed. Along these lines, the kinematics of Avitzur model are presented to be used in describing both the barreling parameter of the model and the profile of the deformed sample. Following an exhaustive examination on the barreling parameters of various deformed samples, one of the methods is identified to be valid for evaluating friction factor up to m ≤ 0.5. Moreover, the results clearly show that the model has its highest accuracy as long as the side-surface folding phenomenon is negligible (≤ 0.25%).

History

Journal

International journal of mechanical sciences

Volume

156

Pagination

486-493

Location

Amsterdam, The Netherlands

ISSN

0020-7403

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2019, Elsevier Ltd.

Publisher

Elsevier