SATHYABAMA UNIVERSITY

(Established under section 3 of UGC Act,1956)

Course & Branch :B.E - CIVIL

Title of the Paper : Mechanics of Solids Max. Marks:80

Sub. Code : SCIX1009(2010/2011) Time : 3 Hours

Date :04/11/2013 Session :AN

PART - A (10 x 2 = 20)

Answer ALL the Questions

1. What are principal planes and principal stresses?

2. Name any four theories of failure.

3. What are the assumptions in Euler’s column theory?

4. Write down the IS code formula for safe stress in columns.

5. What is a perfect frame?

6. Define compressive stress.

7. What are the advantages of fixed beam?

8. Define Claypeyron’s theorem of three moments.

9. Define unsymmetrical bending.

10. Define load factor.

PART – B (5 x 12 = 60)

Answer ALL the Questions

11. A plane element in a boiler is subjected to tensile stresses of 400 MPa on one plane and 150 MPa on the other at right angles to the former. Each of the above stresses is accompanied by a shear stress of 100 MPa such that when associated with the minor tensile stress tends to rotate the element in anticlockwise direction. Find,

(a) Principal stresses and their directions,

(Established under section 3 of UGC Act,1956)

Course & Branch :B.E - CIVIL

Title of the Paper : Mechanics of Solids Max. Marks:80

Sub. Code : SCIX1009(2010/2011) Time : 3 Hours

Date :04/11/2013 Session :AN

PART - A (10 x 2 = 20)

Answer ALL the Questions

1. What are principal planes and principal stresses?

2. Name any four theories of failure.

3. What are the assumptions in Euler’s column theory?

4. Write down the IS code formula for safe stress in columns.

5. What is a perfect frame?

6. Define compressive stress.

7. What are the advantages of fixed beam?

8. Define Claypeyron’s theorem of three moments.

9. Define unsymmetrical bending.

10. Define load factor.

PART – B (5 x 12 = 60)

Answer ALL the Questions

11. A plane element in a boiler is subjected to tensile stresses of 400 MPa on one plane and 150 MPa on the other at right angles to the former. Each of the above stresses is accompanied by a shear stress of 100 MPa such that when associated with the minor tensile stress tends to rotate the element in anticlockwise direction. Find,

(a) Principal stresses and their directions,