- -

-

-

Bending-

-

-

-

Pure Bending :

V--o

{ into

=

no shear tone

- -

-

-

=

O

O

-

-- -

E-⇒ i' ⇐ ob

¥it

-Neutral axi (f-o ) :left -- lust -- k*p*I=poI f-

* f- ( p-y)o

car.

FEI . !¥h.left

= - F

-

-

=D

- to°

I

0

-

T TAy By

(a) Reaction :

EMµ=o : - Pd - PIL-d) try .L=o ⇒ By -- boo lbs

[ Fyi : Ayt By - 213=0 ⇒ Ay -_ tooo lbs

i.¥i÷÷÷. :¥#i¥.

Pure bending : d - X c L-d

(b) Tey , = - F- ifFlnax ' F. thatI - tbh

'= 170.67 in "

3000 ft . lb ( 12⇒ Islam, =-

'

'

Ft). # in)170.67 in

't

= 844 Psi

( C ) ( Elma, = lFm# = 2.81×155

occurs at f- - I

la, ay ) = - ff- rthzrr

I Emnxl =/ EC !) ) -- t.zh-o.org( b ) Irma. I = E / Email = 29 ooo psi

( C ) rt ⇒ Irl 9 149

Cd , ht ⇒ IRIS la 9

Y

(a ) L -- T . zp

Ismail = dnp = ( E) - th ) = Ih s 2.0×10-3

⇒ L Z 1,57×6 ' mm

(b) L -- 3M.h = 1.5mm

|Ema*/= ¥ = 1,57×6-3