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oai:riubu.ubu.es:10259/83322024-01-16T01:05:26Zcom_10259_6214com_10259_5086com_10259_2604col_10259_6215

Calaf Chica, José Bravo Díez, Pedro Miguel Preciado Calzada, Mónica 2024-01-15T08:20:00Z 2024-01-15T08:20:00Z 2017-12 0020-7403 http://hdl.handle.net/10259/8332 10.1016/j.ijmecsci.2017.10.006 Generally, the correlation factors of parameters obtained from the load-displacement curve of small punch tests and the mechanical properties of materials are only acceptable for the materials tested in each investigation. Although the standardization of the correlation factors for different groups of materials is the objective in much of the research on the Small Punch Test (SPT), there are not many studies focused on the physical sense of these correlation factors. Consequently, the applicability of these factors needs the prior knowledge of the material to be tested with comparisons between SPT’s and standardized tensile tests. This investigation, through finite element modeling and a theoretical analysis, goes in depth into the understanding of the first zone of the SPT curve and the study of an unloading/loading cycle introduced into this zone in order to obtain an improved correlation factor for the elastic modulus. This factor is acceptable for most isotropic and homogeneous metallic alloys and depends only on the geometrical setup of the test. Experimental tests (tensile tests and SPT’s) were added to these numerical/theoretical analyses to demonstrate the suitability of this correlation. application/pdf eng Elsevier International Journal of Mechanical Sciences. 2017, V. 134, p. 112-122 https://doi.org/10.1016/j.ijmecsci.2017.10.006 Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess Small Punch Test SPT Elastic modulus Indentation Bending plate Resistencia de materiales Ensayos (Tecnología) Ingeniería civil Strength of materials Testing Civil engineering Improved correlation for elastic modulus prediction of metallic materials in the Small Punch Test info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion International Journal of Mechanical Sciences 134 112 122