Instability and morphology in growing elastic tissues Event

Growth is involved in many fundamental biological processes such as morphogenesis, physiological regulation, or pathological disorders. In this talk, I will consider the modeling of elastic growth in elastic materials and investigate its mechanical consequences. We will see that growth affects the geometry of a body by changing typical length scales but also its mechanics by inducing residual stresses. The competition between these two effects can be used to regulate the physical properties of a material during regular physiological conditions. It can also lead to interesting spontaneous instabilities in growing materials that I will illustrate on a number of physical, biological, and physiological systems.