In this seminar, study of the effect of side grooves in full C(T) specimens under Small Scale Yielding (SSY) is presented. The elastic-plastic crack-tip stress state is analysed by the three-dimensional finite element method. Ramberg-Osgood model is used to characterize the smooth transition of elastic-plastic behavior at the onset of crack-tip under Small Scale Yielding. The effect of side grooves of type V and U on the state of stress are analysed and compared with the plain specimen. Generally, it is observed that the plane stress effect on the surface of the plain specimen is restricted by the introduction of the side grooves. And this effect is studied with the in-plane crack-tip constraint parameter Q and out-of-plane constraint parameters Tz and h through the specimen thickness. It is found that localized plastic deformation at the side grooves increases the constraint level of the cracked specimen at the side grooves whereas it shows less at the middle of the specimen. It is also concluded that as compared with U- groove specimen, V- groove specimen shows better constraint level. In this work, a thorough SEM fractographic analysis was carried out on C(T) fractured specimens with side groove and plain specimen and also studied the correlation between the stress triaxiality along specimen thickness and dimple fracture features. Low plastic deformation is observed on the side groove specimens due to the effect of high stress triaxiality at the surface. The size and the density of dimples on the fracture surface are evident that the ductile fracture was motivated clearly by the voids and in the side grooved specimen, the density of dimple at the groove surface of the specimen is found more as compared to the middle of the specimen. In V-side groove specimen, with less average dimple size and high dimple number density, high stress triaxiality tends to initiate the crack at side groove end first and then guides the entire process of crack growth to produce plane strain like fracture surface.