That's true. But how would you calculate the pressure exerted by tissue on needle? I'm sure that we have to use the deformation / young's modulus or some another property of the tissue to find the pressure.
Hello ,
I'm trying to model the forces on a needle being inserted in a tissue. Needle tip penetrates the tissue surface and as it moves through the tissue, it experiences friction from needle-tissue interaction. Friction arises from the pressure exerted by surrounding tissue as it grips the...