Experimental Procedure for Identifying Yield Criteria for Powder Materials and its Implementation

Sergei  Alexandrov; Yeong-Maw  Hwang; Elena  Lyamina; Jun-Ru  Chen

doi:10.6180/jase.202507_28(7).0004

Experimental Procedure for Identifying Yield Criteria for Powder Materials and its Implementation

Sergei Alexandrov^1,2, Yeong-Maw Hwang³This email address is being protected from spambots. You need JavaScript enabled to view it., Elena Lyamina¹, and Jun-Ru Chen³

¹Ishlinsky Institute for Problems in Mechanics RAS, 101-1 Prospect Vernadskogo, Moscow 119526, Russia

²RUDN University, 6 Miklukho-Maklaya St., Moscow 117198, Russia

³Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-sen University, Lien-Hai Rd., Kaohsiung 804, Taiwan

Received: November 28, 2023
Accepted: July 25, 2024
Publication Date: September 25, 2024

Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.

Download Citation: ||https://doi.org/10.6180/jase.202507_28(7).0004

This paper is devoted to developing an experimental/theoretical procedure for identifying yield criteria for powder materials. The experimental part includes several compression tests. The variation of the loading paths in these tests is achieved by deforming a plastically incompressible ring and powder material together. The description of the ring’s material behavior is not required to interpret experimental results, which is an advantage of the proposed method. The theoretical description of the test is provided using an analytical solution, which is also an advantage of the proposed method. The method is adopted for identifying Green’s yield criterion for aluminum powder. Comparison with other predictions of the yield criterion for this material is made.

Keywords: powder materials; yield criterion; compression tests; plasticity theory.

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