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S0 m 2

U

E

• •

"= 2 "2p p Ur = E. = 2 2E

Ut =

e

2 Ut = . 3

+ 2

u

u ."f

"f [

N.m ] m3

[N.m/m3 ]

• •

n

k

C

=

P [P a] S0

R

= k."R

l

l0 l0

=

l l0


"real = ln(1 + "convencional )

= real

=

convencional (1

+ "convencional )

Sf

S0 S0


HB =

2P p ⇡D(D D2

d2 )


2F. sin 136 F F 2 HV = = ⇥ 1,8544 2 2 A d d

d=

103

dh + dv 2


Apostila aeronautica tecologista jr mecanica materiais