problems

watchpoorUrban and Civil

Nov 15, 2013 (3 years and 11 months ago)

111 views

Engineering 2
6
0
-

Mechanics of Materials

Exam
#
3

(
0
3
/
2
8
/200
8
)


Warrior ID #__________________________


Show your work (I can’t give you any credit if all you show me is the final answer
,

right or wrong). Use this sheet for your
answers. Each of the problems is equally weighted in the overall exam grade.


1.

A steel shaft must transmit 150 kW at a speed of 360 rpm. Knowing that G = 77 GPa, design a solid shaft (determine the
minimum acc
eptable diameter) so that the maximum stress will not exceed 50 MPa and the angle of twist in a 2.5 m length
will not exceed 3 degrees.


























2
.

Draw the shear and bending moment diagrams for the beam and loading shown. Indicate on the diagrams the values of
the shear and bending moment at locations A, B, and C.









V (kip)







M

(kip
-
ft)

3.

Determine the largest value of P that can be applied t
o the beam given the loading
shown
. T
he allowable stress in tension
is 80 MPa and the allowable stress in compression is 140 MPa.