  Bender element is used to determine the shear modulus of the soil sample, and
to accurately predict the shear modulus of any sample, it required to
preciously locate the advent point of the shear wave component in the recorded
output signal. All the existing methods enforces to identify those point
manually. The lack of automation makes the process tedious, time consuming and
prone to error. In addition, contamination from the P wave and the presence of
noises makes this identification procedure dubious. It requires an expert
judgment to overcome the above mentioned difficulties. In this paper, a new
method is suggested based on Sliding Fourier Transform to resolves all these
complications. The proposed method can be automated easily and almost requires
no human inputs. The method found to be reliant against the presence of noise,
P wave contamination and distortion of the signal. The proposed method found to
be a superior replacement of existing methods.
