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Open AccessArticle

Determination of Material Strengths by Hydraulic Bulge Test

China Special Equipment Inspection & Research Institute, Beijing 100084, China
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Academic Editor: Robert Lancaster
Materials 2017, 10(1), 23; https://doi.org/10.3390/ma10010023
Received: 18 November 2016 / Revised: 19 December 2016 / Accepted: 22 December 2016 / Published: 30 December 2016
(This article belongs to the Special Issue Selected Papers from SSTT2016)
The hydraulic bulge test (HBT) method is proposed to determine material tensile strengths. The basic idea of HBT is similar to the small punch test (SPT), but inspired by the manufacturing process of rupture discs—high-pressure hydraulic oil is used instead of punch to cause specimen deformation. Compared with SPT method, the HBT method can avoid some of influence factors, such as punch dimension, punch material, and the friction between punch and specimen. A calculation procedure that is entirely based on theoretical derivation is proposed for estimate yield strength and ultimate tensile strength. Both conventional tensile tests and hydraulic bulge tests were carried out for several ferrous alloys, and the results showed that hydraulic bulge test results are reliable and accurate. View Full-Text
Keywords: hydraulic bulge test; mechanical properties; small specimen hydraulic bulge test; mechanical properties; small specimen
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Wang, H.; Xu, T.; Shou, B. Determination of Material Strengths by Hydraulic Bulge Test. Materials 2017, 10, 23.

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