fig3

Figure 3. (A) Stress-strain curve obtained for the five materials tested as a result of the combination of tensile and compression tests; (B) Von Mises stress obtained from the FEM simulations for one shape and each material of the soft medium of the magnetic pressure sensors; (C) pressure change measured on the upper surface of the sensors during the experimental tests (solid line) and during the FEM simulations (dashed line) for the different materials and shapes; (D) Maximum pressure detection limit measured during the experimental tests (solid color) with the related uncertainty (black error bar) and during the simulations (color with transparency) for each shape and material of the soft medium. M1: Eco50; M2:Eco30; M3:Eco30t10; M4:Eco30t20; M5:Eco30t25. FEM: Finite Element Method.