Abstract
A new method has been developed which allows the reduction of localized notch stresses in two-dimensional (2D) and three-dimensional (3D) elastic structures in a very effective way, with only a commercial finite-element code (the authors used ABAQUS) required. The method simulates on a computer the mechanism of tree growth copying the self-optimization of living trees which always try to grow into a shape of constant surface stress. The success and efficiency of the method is demonstrated by 2D and 3D examples.
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