26 J. Rathore et al. sheet. For the compression cylinder specimens, a rod with a 9.525 mm diameter was cut with a 2:1 length-to-diameter ratio. Full-field displacement and strain measurements were recorded using a stereo DIC system by Correlated Solutions as shown in Figure 3 Stereo Cameras Load Cell Grippers Blue Light Fig. 3 Mechanical testing setup with DIC stereo system Details about the testing machine and DIC system are shown in Table 1. Table 1 Mechanical testing and DIC hardware and software parameters Fixed Parameters Machine Manufacturer & Model MTS Landmark Grips Flat wedge grips LoadCell 100 kN Displacement Rate 0.5mm/min Data Acquisition Rate 100Hz DIC Image Resolution 2448×2048 pixels Lens Schneider f4.0/60mm Image Acquisition Rate 2Hz Patterning Technique White & Black Spray Paint DIC Software VIC 3D 10, Solution or system? Subset Weights Gaussian Interpolant Optimized 8-tap splines Strain Filter Window 15 Strain Type Hencky Calibration Grid 14×10 dots, 3 mm spacing The DIC software parameters used are shown in Table 2. These parameters serve as quality control for the mechanical testing of each specimen. Additionally, for each test calibration, projection error, and noise floor measurements were recorded.
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