Download JNTUA M.Tech 2nd Sem Supply 2016 Aug 9D15103 Advanced Mechanics of Solids Question Paper

Download JNTUA (JNTU Anantapur) M.Tech ( Master of Technology) 2nd Semester Supply 2016 Aug 9D15103 Advanced Mechanics of Solids Previous Question Paper || Download M.Tech 2nd Sem 9D15103 Advanced Mechanics of Solids Question Paper || JNTU Anantapur M.Tech Previous Question Paper

Code: 9D15103

M.Tech I Semester Supplementary Examinations August 2016
ADVANCED MECHANICS OF SOLIDS
(Machine Design)
(For students admitted in 2012, 2013, 2014 & 2015 only)

Time: 3 hours Max. Marks: 60
Answer any FIVE questions
All questions carry equal marks
*****
1 (a) What is shear centre and bending axis?
(b) Locate shear centre for the beam cross section shown in figure below:









2 (a) What are the equations of equilibrium bending stresses for a beams subjected to nonsymmetrical
bending? Explain.
(b) A channel section beam length of 80 m loaded as a simple beam with a concentrated load
P = 35 kN acting at the center of the beam as shown in figure below. Determine the maximum
tensile and compressive stresses in the beam if ? = 5 ?/9. If the beam made of is an aluminum alloy
(E = 72 GPa), determine the maximum deflection of the beam.











3 (a) The curved beam in figure has a triangular cross section as shown in figure below. Determine the
stress at B and C for P = 40 kN.





(b) What are the stresses in chain links? Explain with example.
Contd. in page 2

Page 1 of 2
14.5 mm

200 mm

23.2 mm

96.8 mm

104 mm

13.5 mm

C

e

x

20 mm
140 mm
20 mm
200 mm
20 mm
A
?
?
Plane of the load
y 0
45 mm
120 mm 60 mm B
90 mm
C
P
B
C
FirstRanker.com - FirstRanker's Choice
Code: 9D15103

M.Tech I Semester Supplementary Examinations August 2016
ADVANCED MECHANICS OF SOLIDS
(Machine Design)
(For students admitted in 2012, 2013, 2014 & 2015 only)

Time: 3 hours Max. Marks: 60
Answer any FIVE questions
All questions carry equal marks
*****
1 (a) What is shear centre and bending axis?
(b) Locate shear centre for the beam cross section shown in figure below:









2 (a) What are the equations of equilibrium bending stresses for a beams subjected to nonsymmetrical
bending? Explain.
(b) A channel section beam length of 80 m loaded as a simple beam with a concentrated load
P = 35 kN acting at the center of the beam as shown in figure below. Determine the maximum
tensile and compressive stresses in the beam if ? = 5 ?/9. If the beam made of is an aluminum alloy
(E = 72 GPa), determine the maximum deflection of the beam.











3 (a) The curved beam in figure has a triangular cross section as shown in figure below. Determine the
stress at B and C for P = 40 kN.





(b) What are the stresses in chain links? Explain with example.
Contd. in page 2

Page 1 of 2
14.5 mm

200 mm

23.2 mm

96.8 mm

104 mm

13.5 mm

C

e

x

20 mm
140 mm
20 mm
200 mm
20 mm
A
?
?
Plane of the load
y 0
45 mm
120 mm 60 mm B
90 mm
C
P
B
C
Code: 9D15103

4 (a) What are the stresses developed when the disc is rotating? Derive the formulas for when disc is
subjected to uniform strength.
(b) A hollow thin-wall torsion member sectional dimensions as indicated in figure. The material is an
aluminum alloy for which G = 26 GPa. Determine the torque and unit angle of twist if the maximum
shear stress, at locations away from stress concentrations, is 40 MPa.










5 (a) Derive an expression for the stress concentration at the tip of a elliptical hole introduced in a plate
subjected to far field stress of ?.
(b) Determine the expression for the contact stress developed in a single row ball bearing.

6 (a) Explain a plane stress and plane strain problem in rectangular coordinates with suitable example.
(b) What is the effect the of the shear force on deflection of beam with UDL.

7 (a) Discuss the general yielding mode of failure. Explain: elastic perfectly plastic; nonlinear; lower
bound load; and upper bound for the general yielding mode of failure. Distinguish fully plastic load
for an axial member and the plastic moment for a beam subjected to pure bending.
(b) Derive expression for the stresses in a circular disc.

8 (a) A beam as shown in figure is subjected to pure bending. The material has a yield point ?
y
.
Determine the ratio of the plastic moment and the maximum elastic moment.










(b) Explain about pure bending of three dimensional plates with suitable example.

*****






Page 2 of 2
60 mm
t 3=1.5 mm
t 2=1.5 mm
t 1=4.5 mm
60 mm
30 mm
1 2
q
1

q
2

50 mm
40 mm
30 mm
10 mm
10 mm
10 mm
FirstRanker.com - FirstRanker's Choice