ABSTRACT
This work presents the effect of high strain rate loading on the dynamic response of ABS polymer for potential benefits in mechanical and structural applications. The quasistatic and dynamic tensile behaviour of 3D printed ABS specimens is evaluated in this research. The influence of strain rate on the tensile properties is experimentally investigated in the range of strain rates from 221 s–1 to 542 s–1 using the drop mass setup. Quasistatic tests were performed on a universal testing machine as per ASTM D638. The strain field was captured using the non-contact DIC system with the help of a high-speed camera. The experimental tensile strength results obtained at different strain rates were compared and evaluated with those from the literature. The failed region of the fractured specimens is analyzed to determine the failure mode. The results show that samples develop higher tensile strength and modulus as the strain rates increase. A linear relationship between the tensile stress and strain is observed for the ABS specimens up to their yield point. The percentage of failure strain increases at higher strain rates and stress levels. As the strain rate increases, more stress collapse can be seen, which ultimately leads to the failure of the specimens.
