# Strength of Materials-I

Course Code:RT21013

Author:uLektz

University:

Regulation:2013

Categories:Civil

Format : ePUB3 (DRM Protected)

Type :eBook

Rs.199 Rs.30 Rs.85% off

Description :Strength of Materials-I of RT21013 covers the latest syllabus prescribed by JNTU Kakinada for regulation 2013. Author: uLektz, Published by uLektz Learning Solutions Private Limited.

Note : No printed book. Only ebook. Access eBook using uLektz apps for Android, iOS and Windows Desktop PC.

##### Topics
###### UNIT – I: SIMPLE STRESSES AND STRAINS AND STRAIN

1.1 Elasticity and plasticity -Types of stresses and strains -Hooke’s law

1.2 Stress -Strain diagram for mild steel -Working stress - Factor of safety

1.3 Lateral strain, Poisson’s ratio and volumetric strain - Elastic moduli and the relationship between them -Bars of varying section – composite bars- Temperature stresses.

###### UNIT – II: SHEAR FORCE AND BENDING MOMENT

2.1 Definition of beam -Types of beams -Concept of shear force and bending moment -S.F and B.M diagrams for cantilever, simply supported and overhanging beams subjected to point loads, u.d.l., uniformly varying loads and combination of these loads

2.2 Point of contraflexure - Relation between S.F., B.M and rate of loading at a section of a beam.

###### UNIT – III: FLEXURAL STRESSES

3.2 Determination bending stresses -Section modulus of rectangular and circular sections (Solid and Hollow), I, T, Angle and Channel sections

3.3 Design of simple beam sections.

###### UNIT –IV: SHEAR STRESSES

4.1 Derivation of formula

4.2 Shear stress distribution across various beam sections like rectangular, circular, triangular, I, T angle sections, built up beams, shear centre.

###### UNIT – V: DEFLECTION OF BEAMS

5.1 Bending into a circular arc – slope, deflection and radius of curvature - Differential equation for the elastic line of a beam - Double integration and Macaulay’s methods

5.2 Determination of slope and deflection for cantilever and simply supported beams subjected to point loads, - U.D.L. Uniformly varying load.Mohr’s theorems

5.3 Moment area method -Application to simple cases including overhanging beams.

###### UNIT – VI: THIN AND THICK CYLINDERS

6.1 Thin seamless cylindrical shells - Derivation of formula for longitudinal and circumferential stresses – hoop, longitudinal and Volumetric strains- Changes in diameter, and volume of thin cylinders -Thin spherical shells.

6.2 THICK CYLINDERS: Introduction Lame’s theory for thick cylinders - Derivation of Lame’s formulae - Distribution of hoop and radial stresses across thickness

6.3. Design of thick cylinders - Compound cylinders - Necessary difference of radii for shrinkage - Thick spherical shells.