Abstract
Dynamic fracture analysis of aluminum alloys is a significant research area due to their uses in the aerospace and defense industry, where catastrophic failure can occur suddenly. The crack mouth opening displacement (CMOD) is an important tool in determining the various fracture parameters like stress intensity factor. Quasi-static and dynamic three-point bend (TPB) experiments were performed to investigate the effect of high loading rates on CMOD and fracture behavior of the Aluminum 6063-T6 alloy. A 3D Digital Image Correlation (DIC) was utilized in measuring the CMOD experiments. Quasi static three-point bend experiments were performed using UTM and high-resolution stereo camera system for low loading rates. For dynamic three-point bend experiment, a modified Hopkinson pressure bar setup, two high speed digital cameras, and a dedicated data acquisition system were utilized in measuring load point data and the full field displacement profile. Authors have also evaluated the time response of static and dynamic stress intensity factor from the CMOD with the help of the standard formulations as used by several other researchers. Authors found the values of dynamic fracture toughness are significantly high as compared to static fracture toughness.
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Pandouria, A.K., Chakraborty, P., Kumar, S., Tiwari, V. (2021). Fracture Parameters and Failure Visualization of Al6063-T6 Under Different Loading Rates. In: Xia, S., Beese, A., Berke, R.B. (eds) Fracture, Fatigue, Failure and Damage Evolution , Volume 3. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-030-60959-7_3
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DOI: https://doi.org/10.1007/978-3-030-60959-7_3
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