This paper proposes three methods for calculating the stress of sharp point .Based on a classic example ,on the finite element modeling and simulation ,the sharp point of accurate stress value is determined .Then adopt the circumferential stress average method , line segment stress extrapolation method , variable chamfering radius stress extrapolation method to calculate the stress of this point .Results show that , when near the cusp circumferential stress average method is a relatively reliable method , and in line stress extrapolation method , extrapolation from stress gradient in the direc...
