Syllabus - Strength of Materials (AT304)

Agriculture Technology

Strength of Materials (AT304)

III

UNIT I

Elasticity–Stresses and strains‐Elastic limit–Elastic constants‐Lateral strain‐ Composite sections‐Temperature stresses‐Volumetric strain in a body‐ Resilience and strain energy.

UNIT II

Analysis of statically determinate beams‐ Shear force and bending moment diagrams, Bending and shearing stresses in beams – slope and deflection of beams using double integration method, Macaulay’s method, Moment area theorems and conjugate beam method.

UNIT III

Combined bending and direct stresses ‐ Columns and struts ‐ Euler’s theory ‐Empirical formulae for loads on columns; Stresses in thin cylindrical shells – Torsion of shafts and springs; Analysis of statically indeterminate beams, Propped beams, fixed and continuous beams – Analysis using superposition, Three moment equation and moment distribution methods.

UNIT IV

Analysis and design of singly reinforced and doubly reinforced beams – Shear, bond and torsion – Design of T beams – Slabs – Design of one way and two way slab ( IS code method only) – Columns, Foundations, Retaining walls, Silos and Ferro cement tanks.

UNIT V

Loads and use of BIS codes ‐ Design of riveted and welded connections – Design of structural steel members in tension, compression and bending.

Course Objective

The course introduces students to basic knowledge of strength of different materials along with the stress-strain analysis for designing beams and structural members.

Course Outcome

After successful completion of the course, the students are expected to possess basic understanding and knowledge of design of beams and how to carry out different tests in a material.

Practicals

To perform the tension test on metal specimen (M.S., C.I.), to observe the behaviour of materials under load, to calculate the value of E, ultimate stress, permissible stress, percentage elongation etc. and to study its fracture
To perform the compression test on; Concrete cylinders &cubes, CJ., M.S. & Wood specimens and to determine various physical and mechanical properties
To perform the bending test on the specimens; M.S. Girder, Wooden beam, Plain concrete beams & R.C.C. beam, and to determine the various physical and mechanical properties
To determine Young's modulus of elasticity of beam with the help of deflection produced at centre due to loads placed at centre & quarter points
To study the behaviour of materials (G.I. pipes, M.S., C.I.) under torsion and to evaluate various elastic constants
To perform the Drop Hammer Test, Izod Test and impact tests on the given specimens
To determine compressive & tensile strength of cement after making cubes and briquettes
To measure workability of concrete (slump test, compaction factor test)
To determine voids ratio & bulk density of cement, fine aggregates and coarse aggregates
To determine fatigue strength of a given specimen

Reference Books

Khurmi, R.S. 1998 Strength of Materials and Mechanics of Structures,. Vol. 1& 11 S. Chand and Company, New Delhi
Singh Gurubaksh. 1998 Strength of Materials and Structures,. Vol. I & II Khanna Publishers, New Delhi.
Timoshenko, S.P. and Young, D.H. 1968.Strength of Materials. Affiliated East-West Publications, New Delhi.
Bansal, R.K. (1992). Engineering Mechanics and Strength of materials. Laxmi Publications, New Delhi.
Kumar, K. L. (2003). Engineering Mechanics. Tata Mc Graw Hill Publishing Company, New Delhi.
Punmia, B.C., Ashok Kumar Jain and Arun Kumar Jain. (1994). Reinforced Concrete (Vol. I). Laxmi Publications, New Delhi.