2026-06-19T16:52:03Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/49612021-11-10T09:38:23Zcom_10259_4201com_10259_5086com_10259_2604col_10259_4505
Repositorio Institucional de la Universidad de Burgos
author
Calaf Chica, José
author
Bravo Díez, Pedro Miguel
author
Preciado Calzada, Mónica
2018-10-08T10:36:44Z
2018-10-08T10:36:44Z
2018-09
1996-1944
http://hdl.handle.net/10259/4961
10.3390/ma11091491
The load–deflection curve acquired from the Small Punch Test (SPT) is used to obtain the mechanical properties of materials using different correlation methods. The scattering level of these regressions tends to be high when a wide set of materials is analyzed. In this study, a correlation method based on a specific slope of the SPT curve was proposed to reduce scattering. Assuming the Ramberg–Osgood hardening law, the dependence of the SPT curve slope on the yield strength and the hardening coefficient is demonstrated by numerical simulations (FEM). Considering that the ultimate tensile strength could be obtained from the hardening coefficient, a response surface of the ultimate tensile strength with the yield strength and SPT curve slope, along with its equation, is presented for steel alloys. A summary of steel mechanical properties, based on the Boiler and Pressure Vessel Code (BPVC) and limited to yield strengths lower than 1300 MPa, is shown to select a set of experimental tests (tensile tests and SPTs) for which the range is completely covered. This experimental analysis validates the previous FEM analyses and the validity of the proposed correlation method, which shows more accurate correlations compared to the current methods
eng
Attribution 4.0 International
Small Punch Test
SPT
ultimate tensile strength
strain-hardening
A new prediction method for the ultimate tensile strength of steel alloys with small punch test
info:eu-repo/semantics/article
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URL
https://riubu.ubu.es/bitstream/10259/4961/1/Calaf-materials_2018.pdf
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Calaf-materials_2018.pdf
URL
https://riubu.ubu.es/bitstream/10259/4961/6/Calaf-materials_2018.pdf.txt
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text/plain
Calaf-materials_2018.pdf.txt