PSI - Issue 60

Ganesh Nigudage et al. / Procedia Structural Integrity 60 (2024) 678–689 Ganesh Nigudage /Structural Integrity Procedia 00 (2023) 000 – 000

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Fig. 1. Schematic representation of the SP setup.

Fig. 2. Load-displacement plot in SPT

During initial stages of punch travel (point A) the deformation of specimen involves more bending and less stretching. As deformation progresses with punch travel the stretching initiates and microcracks are formed in tensile side of specimen (point B) because of decrease in thickness between punch center and material inside upper and lower