Estimate elastic constant of mild steel plate using Welch’s periodogram method

Mild steel (MS) plate used different type of construction design. To find the vibration analysis of plate is important work to find the fundamental frequency. In this paper ball is impact on metal plate with different height and different plate area to find the fundamental frequency. Apply welch periodogram method to vibrating signal and find the fundamental frequency. Fundamental frequency by welch periodogram method compare with ANSYS software by finite element method. It observed that fundamental frequency accuracy is very good by Welch method. Further elastic constant also estimates by method. Estimate result it show that elastic constant from Welch method is very accurate. The proposed method is accuracy 3.92%. Young modules estimate for MS plate by proposed method is accuracy is 7.2%.