Parametric Analysis and Photo Elastic Experiment of Stress Concentration Factor and Its Mitigation in Rectangular Plate with Opposite V- notches Subjected to In-Plane Loading

Various studies look at flat plates with sharp V-notches that are subjected to axial loads. There have been few attempts to reduce the stress concentration factor caused by V-notches. The current study uses an area reduction method to mitigate the stress distribution caused by a V notch under in-plane static loading in rectangular isotropic plates. For subtended angle, 2 of V notch 60,90,120, and 150, the changes of stress concentration factor (SCF) for varied b/A ratios, depth of V-notch to plate width are established. By inserting auxiliary semi circular notches surrounding the V-notch, the stress concentration factor (SCF) around the primary notch has been reduced. The impact of different geometric parameters on stress reduction is also investigated. A perfect size and placement of auxiliary semicircular notches has been found. Finite element analysis and the two-dimensional photo elasticity method were used in this study. The findings are shown graphically and discussed. The reduction in Stress Concentration Factor observed as a result of the placement of semicircular notches in the region is positive.

Author(S) Details

Shubhrata Nagpal
Department of Mechanical Engineering, Bhilai Institute of Technology, Bhilai House, G. E. Road, Durg (C.G.), 491001, India.

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