applying Fillet

Hi,

I am just studing the different configuration in cosmos works.

one doubt i have when i have taken a L bracket and analysis it, itcreates a stress of 4Xe4 psi.

but when i applying a fillet in the bracket, it will show maximumstreess.

according to theory during fillet stree will be develop less.

so what is the reason?

i am attaching some pictures for the refferences.SolidworksSimulation