In the present study, the fractured behavior of epoxy based thermoset specimens with double v-notch was analyzed. An attempt was made to study the effect of stress intensity factor by varying the notch central line distance along the width of the test coupons. Analysis of plate is done by experimental and analytical procedure. A notch with aperture angle 60 degree was made on the either side of the test specimen and subjected to the uni-axial tensile loading. The similar result was analyzed by using FEA software like ANSYS. The experimental analysis was conducted for the tensile test by using universal testing machine (INSTRON) and the Stress Intensity Factor (K) was estimated. A correlation was established between the position of the notch and the K for the test specimen under room temp testing condition. Nomenclature A Symbol Meaning 1 K I Mode I Stress Intensity Factor 2 σ Far field stress 3 a Notch depth 4 W Half Width of plate 5 t Thickness of plate 6 L Length of specimen 7 E Young's modulus 8 µ Poisson's ratio 9 ε Strain 10 P Load 1. Introduction The thermoset Epoxy polymer has distinguished properties such as high adhesive strength, high strength and hardness, hence epoxy finds relevant applications in major industries such as Aerospace, Industrial Tooling to produce mold, Castings, Fixtures etc. But because of brittleness property,epoxy possess poor fracture toughness or poor resistance to crack initiation and propagation [1]. This drawback of brittleness limits the application of epoxy in fields where fracture strength is important criteria. To overcome this issue, in last few decades, many experiments have been made to improve fracture toughness by addition of rubber and thermoplastic composite whichresults poor mechanical properties [2]. In addition of inorganic additives such as silica andalumina particles, the materials retainits