Brinell usuli

Brinell usuli - material qattiqligini aniqlovchi asosiy usullardan biri.

Tarixi

Shvetsiyalik muhandis Brinell, Yuxan Avgust (1849—1925) asos solgan.

Sinov tartibi va hisoblar

Sinov sxemasi

$\mbox{HB}=\frac{P}{\frac{\pi D}{2}\left(D-\sqrt{D^2-d^2}\right)}$,

$\mbox{HB}=\frac{P}{\pi Dh}$

Shuningdek, qarang

• Vikkers usuli