Free vibration analysis of circular and annular thin plates based on crack characteristics

This study presents the effect of vertical and horizontal oriented cracks on free vibration response for circular annular thin plates. To investigate dynamic behavior damaged structures are modeled separately considering horizontal/vertical orientations, ten different locations, four crack sizes. For plates, placed in middle between outer inner edges to directions. The first five resonant frequencies, corresponding mode shapes cracked obtained by employing Finite Element Method. analyses conducted clamped boundary conditions plates clamped-clamped, clamped-free, free-clamped results presented interpreted differences non-dimensional frequencies those structures. According findings, it is seen that depending its location size, a can change accumulating bending regions around it. Besides, may also number occurred or