aircraft brakes were never designed for stopping aircraft.

On Aug 5, 5:17 am, Stealth Pilot
wrote:

when I put new pads on earlier this year I broke one so I actually
have one of the pads sitting 2inches from my space bar as I type.
I calculated that it has a surface area of no more than 1.57 square
inches. when you brake hard in the aircraft they get fitted to you are
using no more than 6 and a quarter square inches of pad to stop a one
thousand five hundred pound weight aircraft.
as for standing on the brakes sure it can be done but at some
considerable abuse to the braking systems.
the concept is one of half m vee squared's worth of energy being
converted to heat by 6 or so square inches of pad.

Plenty of area to stop a 1500 lb airplane. As I said before, my
4500 lb car has brake pads that are no more than three times as large
as the pads you have there, and those car brakes are used to stop the
car from 80 MPH, are used on long downhills, are used hundreds of
times every day in traffic, and so on. They're designed to do that.
The light aircraft brakes are used to hold the airplane during runup
and to stop it at the end of a taxi or landing roll, neither of which
are anywhere near as brutal as the auto's brakes have to deal with.
Many older light aircraft had pads even smaller, yet they worked
just fine. The bigger issue is heat dissipaton from the disc, since
excessive disc temperature will cause brake fade no matter how large
the pads. Kinetic energy is transformed into heat, and when the discs
are hot they can't absorb much more energy and will lose their
effectiveness. Aircraft brakes are out in the breeze and get better
cooling than car brakes.
Occasional hard braking in your airplane won't hurt the brakes
and will maybe keep the airplane out of the rhubarb. Brake pads are
cheaper than airframe damage any day.
Dan