Issue 65

S. M. J. Tabatabee et alii, Frattura ed Integrità Strutturale, 65 (2023) 208-223; DOI: 10.3221/IGF-ESIS.65.14

Figure 10: Porous specimens. Tensile tests were carried out to extract stress-strain curves, employing a universal tension–compression testing machine at a displacement rate of 1 mm/min. All quasi-static tests were carried out at room temperature under displacement control. The stress was estimated by dividing the load by the specimens’ cross-section and the strain by dividing the displacement by the length between gears. Three specimens were tested for each set of manufacturing parameters. The reported results are the average values.

Figure 11: Test setup for specimens on SANTAM universal tension-compression testing machine. The output stress-strain curve for set 1 of the specimens is shown in Fig. 12. Two response variables can evaluate with these results, elastic modulus (E) and Maximum Tensile Stress (MTS). These parameters can describe the material's tensile

215