Analysis of the State of Stress at the V-Hole Ended Notch for Mode II
FEM linear numerical analysis of stress distribution demonstrated that the model Zappalorto and Lazzarin for analysed V-hole ended notch, relatively correctly predicts the stress distribution at the tip of the notch, especially for small angles of opening. The maximum levels of hoop stress and a tangential for load Mode II strongly dependent on the radius of the notch. The stress reaches its maximum value at a certain distance from the tip of the notch, approximately equal to half of the hole circle radius. The most effective way to reduce the levels of maximum stress at the notch is to increase the radius. When changing radius of 0.5 mm to 2 mm can reduce the degree of stress concentration approx. 40%.
K. Gołoś and M. Niepokolczycki, "Analysis of the State of Stress at the V-Hole Ended Notch for Mode II", Solid State Phenomena, Vol. 250, pp. 29-36, 2016