Investigation of Stress Intensity Factor of Finite Plate for Change in Center Crack Width
1 Post Graduate Student, Mechanical Engineering, JNEC, Aurangabad, Maharashtra, India 2 Mechanical Engineering, University of Aveiro, Portugal 3 Mechanical Engineering, JNEC, Aurangabad, Maharashtra, India Abstract—In real world problem, theoretical solutions are existing for idealized cases such as Infinite flat plate with edge crack, central crack and so on. Main limitation of these theoretical solutions is that they are very restrictive and whereas analyzing a usual component, a lot of assumptions are needed. Finite Element Analysis on the other hand offers good tool to determine Stress Intensity Factor. Generally cracks initiate at geometric discontinuities (such as weld toes, voids, notches, holes, etc.) that induce large stress (stress concentration). Mostly the stress intensity factors depend on the geometry of the workpiece and on loading condition. In this study investigation is carried on central cracked plate of a finite length where stress intensity factor is calculated for different values of crack width. This paper highlight the effect of crack width on stress intensity factor. From results, it is concluded that width of crack can be used as a fracture criterion for thin Plates. Keywords—Stress Intensity Factor (SIF), ANSYS, crack width