Modelling and characterisation of soft biological tissues

In relation with my research works on traumatic brain injury, I investigated several aspects of the modelling and characterisation of soft biological tissues. More specifically, I studied the propagation of shear waves in pre-stressed viscoelastic media, see the 2022 Int. J. Solids Struct. publication. Using these results, I adapted an experimental technique to measure the amount of mechanical stress in a material based on the propagation of two shear waves, see my 2024 publication in Extreme Mech. Lett. Experimental measurements are currently being performed on polymer tissue phantoms using the fractional viscoelasticity theory presented in the 2025 Math. Mech. Solids paper.

In the context of torsional mechanical tests performed on soft porous cylinders (e.g., cylindrical samples of brain tissue or liver tissue), my 2024 Int. J. Non-Linear Mech. publication shows that the porosity is responsible for a slight compressibility effect. However, the fluid motion in the pores does not qualitatively affect the relationship between the torque and the vertical normal force applied to the sample.