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dpb

On 2/20/2014 1:29 PM, wrote:
What I don't understand in particular are these two phenomena that would seem to reduce the effectiveness of the applied mass:

1) when the deadblow is accerated toward the object the mass
(majority) is in the rear of the cavity (from inertia). After the
deadblow makes contact the mass leaves the rear of the cavity and
travels to the from and as it does, it decelerates. (Loss of a thus loss
of efficiency)

2) there is still bounce back inside the deadblow head. After the
shot is thrown against the front inside of the deadblow it will
bounce back. The energy that is lost to internal bounce back should
equal any energy lost to the bounce back of a non-deadblow mallet of
equal mass. Correct?

Both, essentially, "no" with a proper choice of materials and
construction. 1) doesn't decelerate except by hitting the head (albeit
some indirectly thru the elements ahead of them) to any appreciable
extent. The benefit comes from the marked difference in recoil energy
lost. The internals don't act as does a solid; it's that
elastic/inelastic thingie again...

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