2015 Volume 56 Issue 4 Pages 576-580
Yield and fatigue strength of pure titanium periodic plates were investigated for three different mesh designs using acoustic emission (AE) method. Simulations of tensile test were also conducted to estimate yield strength numerically and compare with experiments. By analyzing AE during deformation, it was found that the origin of multiple AE count rate peaks is due to various yielding locations inside the specimens. For fatigue experiments, AE was used to detect the time of first fracture as it corresponds to the failure of a single cell. However, the difference in time with the final fracture of the plate was not significant, especially for low stress amplitude.
