The brain is one of the most exciting and unknown entities in nature. During development the brain folds towards a highly convoluted form. The topological features of the brain are also related to the deformation of the tissue under mechanical loads, such as traumatic brain injury, strokes and tumor growth. In this work, we propose to reproduce mechanically and numerically the evolution of the brain folding during development. We will compute a finite element model of the different topological models in order to analyze the mechanical response.