Experimental and Analytical Study on the Thermomechanical Behavior of PC/ABS Blend

In this study, we examine the small and large strain tensile properties of the PC/ABS blend through experimental analysis and the application of predictive analytical models. Our investigation includes an investigation of the effects of temperature and strain rate on the tensile response, with strain rates ranging from 1.25 10−4 s−1 to 1.25 10–1 s−1 and temperatures ranging from 20 ℃ to 120 ℃. The experimental findings prove that the tensile behavior of the material blend is sensitive to both strain rate and temperature. As temperature increases, the yield strength and strain of the material blend decrease significantly, while the modulus experiences a slight decrease. Following an analysis of material parameters using various constitutive models such as G’Sell and Jonas, and DSGZ, a phenomenological model named the DSGZ modified model by “Zhu et al.” was selected to characterize the tensile behavior of PC/ABS. In comparison with other models, the “Zhu et al.” model demonstrates a higher level of accuracy. The proposed model exhibits proficient capability in simulating and predicting tensile behavior across various strain rates. However, regarding the influence of temperature, the predicted responses notably deviate from the experimental data.