Investigation of Multiple Cracks in Cantilever Beam- A Review

Beam kind structures area unit being ordinarily utilized in steel construction and machinery industries, in structures and machines, and fatigue cracks area unit the most reason behind beams failure. Crack happens in beams to vary its dynamic behaviour of structure and examining these changes in crack location and crack size area unit known. The NDT ways area unit used for crack detection and that area unit expensive and time intense. During this paper the beam bear in mind to open thwart wise cracks. Presently analysis has targeted on using modal parameters i.e. natural frequency used for crack detection. During this paper the modal analysis was performed on cracked beams and a healthy beam, to calculate natural frequency. The primary 5 natural frequencies wear thought-about for crack detection. To find the crack i.e. crack depth and crack locations area unit aforethought. The intersection of those contours indicates crack location and crack depth, thence to notice multiple cracks. The experimental results area unit obtained by using FFT analyser. Finally the ANSYS result compare with experimental result.