Is t right that, in a plate with a hole, subjected to uniaxial loading, along one of the axis, one gets compressive stresses around the crack tip (in the same direction as that of the applied load ). I'm not able to understand this intuitively. Can someone help? I believe, intuitively, these compressive stresses (See sketch below) are due to Poisson's effect, although the magnitude might be greater because of the hole. There is 'nothing special' concerning the these compressive stresses as such. Any comments?