WITH EFFECT FROM THE ACADEMIC YEAR 2011 - 2012

CE 204

STRENGTH OF MATERIALS - I

Instruction                                                                                                                                                                     4  Theory Periods per week

                                                                                                                                                                                       2 Drawing Periods per week

Duration of University Examination                                                                                                                          3  Hours 

University Examination                                                                                                                                              75 Marks

Sessional                                                                                                                                                                     25 Marks

UNIT – I

Simple Stresses and Strains : Definitions, types of stresses and strains. SI units, and notation, Hooke's law, modulus of elasticity, stress-strain curves for mild steel and typical engineering materials. Ductile and brittle materials. Working stress and factor of safety. Deformation of bars under axial loads; prismatic and non-prismatic bars. Deformations due to self-weight. Bars of uniform strength. Poisson's ration; volumetric strain and restrained strains. Relationship between elastic constants. Compound bars and temperature stresses. Statically indeterminate problems in tension and compression. Compound bars and temperature stresses. Indian standard codes of practice. Non-liner elasticity.

UNIT – II

Shear Force and Bending Moment : Different types of beams and loads; shears force and bending moment diagrams for cantilever and simply supported beams with and without overhangs subjected to different types of loads viz., point loads, uniformly distributed loads, uniformly varying loads and couples, Relationships between loading, shear force and bending moment. Bending Stresses in Beams : Theory of simple bending. Moment of resistance, modulus of section. Stresses in beams of various cross sections; flitched beams.

UNIT – III

Shear Stress in Beams : Distribution of transverse shear stresses over rectangular, circular, trangular, I-and T-sections.

Direct and Bending Stresses : Distribution of stresses over symmetrical sections under combined axial load and bending moment. Cores of solid and hollow circular and rectangular sections.

Trusses : Methods of sections and joints applied to trusses of various configurations.

UNIT – IV

Thin Cylinders : Thin Cylinder subjected to internal fluid pressure; prestressed cylinders.

Thick Cylinders : Stresses under internal and external pressure. Compound cylinders.

Spherical Shells : Stresses under self-weight, uniformly distributed and crown loads.

UNIT – V Graphic Statics :

1.Resultant of coplanar, concurrent, parallel (like and unlike) and non-concurrent

forces.

2.Analysis of pin jointed determinate trusses and girders subjected to vertical and

inclined loads.

3.Shear force and bending moment diagrams for cantilevers, simply supported

beams, and beams with overhangs.

Suggested Reading :

1.D.S. Prakash Rao, Strength of Materials __ A Practical Approach,

Universities Press, Hyderabad, 1999.

2.D.S. Prakash Rao, Graphical Methods in Structural Analysis,

Universities Press, Hyderabad, 1997.

3.G.H. Ryder, Strength of Materials, Third Edition in SI units, Macmillan India Limited, Delhi, 2002.

4.A. Pytel and F.L. Singer, Strength of Materials, Harper 7 Row, fourth Edition, New York, 1987.

Additional Reading :

1.IS 516 : 1959, Indian Standard Method of Tests for strength of Concrete, Bureau of Indian Standards, New Delhi, 1959.

2.IS 1608 : 1995, Indian Standard Mechanical Testing of Metals __Tensile Testing, Bureau of Indian Standards, New Delhi, 1995.

 3.IS 10 005 : 1994, Indian Standard for SI Units and Recommendations for the Use of Their Multiples and Certain Other Units,

Bureau of Indian Standards, New Delhi, 1994.

4.D. S. Prakash Rao, Strength of Materials Vol.1,University Press.

5.Strength of Materials and Structures, John Case, Lord Chilver & Carl T. F. Ross, Butterworth, Heinemann Publishers.

6.Strength of Materials, S. S. Rattan, Tata McGraw Hill Education.

7.Strength of Material (Mechanics of Solids), Er. R. K. Rajput, S.Chand & Company.

8.Strength of Material (Mechanics of Solids),R. S. Khurmi, S. Chand & Company.

9.A text book of Strength of Materials, Dr. R. K. Bansal, Laxmi Publications.

10.Strength of Materials, R. Subrahmanian, Oxford University Press.

 11.Strength of Materials, BS Basavarajaih & P. Mahadevappa, University Press.

12.Mechanics of Materials, B.C.Punmia, Ashok Kumar Jain, Arun Kumar Jain, Laxmi Publications

13.Fundamentals of Solid Mechanics, M. L. Gambhir, PHI Learning Pvt. Ltd.

14.Strength of Materials, G. H. Ryder, Macmillan India Limited.

15.Strength of Materials, A. Pytel and F. L. Singer Harper & Row Publishers.