Parametric Analysis and Photo Elastic Experiment of Stress Concentration Factor and Its Mitigation

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 Abstract Flat plates weakened by presence of sharp V-notches subject to axial loads are analyzed by various researchers. Attempts towards mitigation of stress concentration factor due to V-notches are limited. In the present work, mitigation of the stress distribution due to notch under in-plane static loading in rectangular isotropic plates using area reduction method. The variations of stress concentration factor (SCF) for different b/A ratios, depth of V-notch to plate width is established, for subtended angle, 2𝛼, of V notch 60o, 90o, 120o, and 150o. Mitigation in stress concentration factor (SCF) around main notch has been carried out by introducing auxiliary semi circular notches around V-notch. Effect of various geometric parameters on the stress mitigation is also studied. The optimum size and position of auxiliary semicircular notches has been obtained. The work has been carried out using finite element analysis and two dimensional photo elasticity method. The results are shown in graphical forms and discussed. The mitigation thus obtained in Stress Concentration Factor due to introduction of semicircular notches in the vicinity is encouraging. Layman Abstract Sharp V-shaped cuts (notches) in metal plates create dangerous stress concentrations that can lead to cracks and failure. This research explores a clever fix: drilling small semicircular holes around the main V-notch to redistribute stress more evenly. Using computer simulation and photoelastic testing (which visualizes stress with light), engineers found optimal positions and sizes for these auxiliary holes. The technique significantly reduces peak stress, offering a simple way to strengthen notched components without major redesign. Keywords Stress concentration factor, V-notch, plate stress analysis, mitigation technique, auxiliary notches, finite element analysis, photoelasticity, isotropic plates, geometric optimization, stress redistribution, failure prevention Hashtags #StressAnalysis, #FiniteElementAnalysis, #MechanicalEngineering, #Photoelasticity, #NotchMitigation, #StructuralIntegrity, #FatiguePrevention, #EngineeringDesign, #MaterialStrength, #StressConcentration Disclaimer: This scientific-creative video was produced using AI voice-over and royalty-free stock images and clips. All content is sourced exclusively from peer-reviewed journal articles and book chapters, with full citations provided below. The peer-review process for these sources is also detailed here. Source / Reference: https://doi.org/10.9734/bpi/naer/v16/...