In this work, a numerical analysis based on the linear hardening model and ball indentation test was proposed to determine the properties of materials such as austenitic stainless steels that obey linear hardening behavior. Experiments on 304 and 321 austenitic stainless steel showed that the numerical method provides yield and tensile strength values with a maximum error of less than 5% and the hardening behavior identical with uniaxial tensile tests, while the average error for yield strength was more than 30% with the empirical method. The reasons why the empirical method produces larger errors for non-power law materials were analyzed in detail. The elastic modulus calculation method was also re-investigated, and the model based on re-loading showed much bigger equivalent contact diameters and provided more accurate elastic modulus values in a simple way.
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ASME 2017 Pressure Vessels and Piping Conference
July 16–20, 2017
Waikoloa, Hawaii, USA
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
978-0-7918-5802-8
PROCEEDINGS PAPER
A Study on the Ball Indentation Test for Linear Hardening Metals
Tairui Zhang,
Tairui Zhang
Shandong University, Jinan, China
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Weiqiang Wang,
Weiqiang Wang
Shandong University, Jinan, China
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Aiju Li
Aiju Li
Shandong University, Jinan, China
Search for other works by this author on:
Tairui Zhang
Shandong University, Jinan, China
Weiqiang Wang
Shandong University, Jinan, China
Aiju Li
Shandong University, Jinan, China
Paper No:
PVP2017-65253, V007T07A002; 7 pages
Published Online:
October 26, 2017
Citation
Zhang, T, Wang, W, & Li, A. "A Study on the Ball Indentation Test for Linear Hardening Metals." Proceedings of the ASME 2017 Pressure Vessels and Piping Conference. Volume 7: Operations, Applications and Components. Waikoloa, Hawaii, USA. July 16–20, 2017. V007T07A002. ASME. https://doi.org/10.1115/PVP2017-65253
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