I'm not sure if this is a standard physics concept or not, but I am trying to work out if the depth a blade cuts through a material is based on the square of the linear blade speed or the cube of the speed.
Tests with a kitchen knife and block of cheese looks like it's squared;
speed X, whole blade travel, depth in cheese 2mm
speed 2X, whole blade travel, depth in cheese 7mm
but my test is very unscientific, I'm trying to use gravity to set a constant downforce on the blade and pull it by hand from the tip of the knife handle.
My speed control is pretty sloppy too, but moving the blade faster definitely results in much deeper cut from the same inches of blade travel.
Can anyone tell me if this is a known and understood physics effect of cutting or if it must be worked out somehow?
Tests with a kitchen knife and block of cheese looks like it's squared;
speed X, whole blade travel, depth in cheese 2mm
speed 2X, whole blade travel, depth in cheese 7mm
but my test is very unscientific, I'm trying to use gravity to set a constant downforce on the blade and pull it by hand from the tip of the knife handle.
My speed control is pretty sloppy too, but moving the blade faster definitely results in much deeper cut from the same inches of blade travel.
Can anyone tell me if this is a known and understood physics effect of cutting or if it must be worked out somehow?