RT info:eu-repo/semantics/article
T1 Development of an improved prediction method for the yield strength of steel alloys in the Small Punch Test
A1 Calaf Chica, José
A1 Bravo Díez, Pedro Miguel
A1 Preciado Calzada, Mónica
K1 Small Punch Test
K1 SPT
K1 Yield strength
K1 Resistencia de materiales
K1 Strength of materials
K1 Ensayos (Tecnología)
K1 Testing
AB The Small Punch Test (SPT) is a miniaturized test to characterize the mechanical properties of the materials. The load-displacement curve obtained by this test does not directly provide the material parameters, and linear correlations between data obtained from SPT curve and each mechanical property are necessary. The main difficulty of these correlation methods is the high level of scattering showed when analyzing a wide set of materials in the same study.In this paper, a finite element analysis focused on steel alloys was performed to understand the specimen behavior in the early stages of the SPT. Present methods to correlate the material yield strength with the data obtained from the SPT curve were also analyzed via this FEM study to discover the meaning of the current correlation scattering for this mechanical property. This numerical research also proved the accuracy of the proposed correlation method for the yield strength via the SPT. The maximum slope of zone I (Slopeini) of the SPT curve showed an accurate correlation with this mechanical property.Focusing on steel alloys, experimental tensile tests and SPT's were performed to validate the numerical analysis and to demonstrate the suitability of the proposed Slopeini versus yield strength correlation method.
PB Elsevier
SN 0264-1275
YR 2018
FD 2018-06
LK http://hdl.handle.net/10259/4785
UL http://hdl.handle.net/10259/4785
LA eng
DS Repositorio Institucional de la Universidad de Burgos
RD 22-dic-2024