Two type of tensile specimens are made from polystyrene (PS) and high impact polystyrene (HIPS). These specimens are tested for its tensile properties using universal testing machine. The stress vs strain graph of the specimens is displayed in Figure 1. By referring to Figure 1.

Compare the mechanical properties of both specimens.

Transcribed Image Text:

40 40 30 Engineering Stress (MPa) 20 20 10 Polystyrene High impact Polystyrene 0 0.02 0.04 0.06 0.08 0.1 Engineering Strain (mm/mm) 40 40 30 Engineering Stress (MPa) 20 20 10 Polystyrene High impact Polystyrene 0 0.02 0.04 0.06 0.08 0.1 Engineering Strain (mm/mm)