Experimental study of damage and mechanical reliability of Acrylonitrile Butadiene Styrene subjected to uniaxial loading

This paper investigate the mechanical behavior of Acrylonitrile Butadiene Styrene (ABS) subjected to uniaxial loading, with particular interest in the effect of damage on its mechanical properties. This investigation was conducted in two phases: an experimental characterization of the standard mechanical behavior of ABS, followed by an analysis of the influence of notches of different lengths (1 to 14 mm) on specimens drilled with a 3 mm diameter hole. The obtained results show a progressive decrease in the ultimate residual stress proportional to the increase in the notch length, following a characteristic three-phase process. This study proposes a quantification of the damage and establishes a correlation between this parameter and the reliability of the material as a function of the fraction of life, thus making it possible to identify three distinct stages in the evolution of the damage. This approach constitutes a predictive tool for the evaluation of the residual life of ABS components subjected to mechanical stress.