STRENGTH OF MATERIALS TEXTBOOK FREE DOWNLOAD PDF CIVILENGGFORALL

NOTE : BELOW ARE THE TOPICS COVERED MENTIONED IN BRIEF. THERE ARE MANY OTHER RELATED TOPICS IN THE BOOK. KINDLY DOWNLOAD THE BOOK AND CHECK IF THE REQUIRED TOPIC IS PRESENT.

TOPICS COVERED IN THIS BOOK

SIMPLE STRESS AND STRAIN
STRESS, SHEAR STRESS, St.VENANT’S PRINCIPLE
STRAIN, MODULUS OF ELASTICITY, MODULUS OF RIGIDITY
PRINCIPLE OF SUPERPOSITION, ELONGATION
STATICALLY INDETERMINATE SYSTEMS
TEMPERATURE STRESSES, SHRINKING, STRAIN ANALYSIS
FACTOR OF SAFETY. ELASTIC CONSTANTS, RELATIONS BETWEEN ELASTIC CONSTANTS, 3 DIMENSIONAL STRESS SYSTEMS
COMPOUND STRESS AND STRAIN
STRESS ANALYSIS, PRINCIPAL STRESSES, MAXIMUM SHEAR STRESSES
NORMAL STRESS ON PLANES OF MAXIMUM SHEAR STRESS
MOHR’S STRESS CIRCLE
THREE COPLANAR STRESSES
ELLIPSE OF STRESS
STRAIN ANALYSIS, PRINCIPAL STRAINS, PRINCIPAL SHEAR STRAINS
SUM OF DIRECT STRAINS ON TWO PERPENDICULAR PLANES
MOHR’S STRAIN CIRCLE
PRINCIPAL STRESSES FROM PRINCIPLE STRAINS
STRAIN ROSETTE
STRAIN ENERGY
SHEAR STRAIN ENERGY IN THREE DIMENSIONAL STRESS SYSTEM
SHEAR ENERGY DUE TO BENDING AND TORSION, BARS OF TAPERING SECTIONS
STRESSES DUE TO VARIOUS TYPES OF LOADING
SHEAR FORCE AND BENDING MOMENT
TYPES OF SUPPORTS AND BEAMS
SHEAR FORCE
BENDING MOMENT
RELATION BETWEEN LOAD, SHEAR FORCE, BENDING MOMENT
SHEAR FORCE AND BENDING MOMENT DIAGRAMS FOR CANTILEVERS AND SIMPLY SUPPORTED BEAMS
BEAMS WITH OVERHANGS
BEAMS WITH VARYING DISTRIBUTED LOAD
BEAMS SUBJECTED TO COUPLES
BEAMS WITH HINGED JOINTS
INCLINED LOADING
LOADING AND BENDING MOMENT DIAGRAM FROM SHEAR FORCE DIAGRAM
BENDING STRESS IN BEAMS
THEORY OF SIMPLE BENDING
MOMENT OF INERTIA
BEAMS WITH UNIFORM BENDING STRENGTH
FLITCHED OR COMPOSITE BEAMS
REINFORCED CONCRETE BEAMS
UNSYMMETRICAL BENDING
DETERMINATION OF PRINCIPAL AXES
ELLIPSE OF INERTIA OR MOMENTIAL ELLIPSE
COMBINED DIRECT AND BENDING STRESS
MASONARY DAM, RETAINING WALLS
SHEAR STRESS IN BEAMS
VARIATION OF SHEAR STRESS
SHEAR STRESS VARIATION IN DIFFERENT SECTIONS
BUILT UP BEAMS
SHEAR STRESS IN THIN SECTIONS
SHEAR CENTRE

SLOPE AND DEFLECTION
BEAMS DIFFERENTIAL EQUATION
SLOPE AND DEFLECTION AT A POINT
DOUBLE INTEGRATION METHOD
MACAULAY’S METHOD
MOMENT-AREA METHOD (MOHR’S THEOREMS)
STRAIN ENERGY DUE TO BENDING
CASTIGLIANO’S FIRST THEOREM (DEFLECTION FROM STRAIN ENERGY)
DEFLECTIONS BY CASTIGLIANO’S THEOREM
IMPACT LOADING ON BEAMS
CONJUGATE BEAM METHOD
DEFLECTION DUE TO SHEAR
MAXWELL’S RECIPROCAL DEFLECTION THEOREM
BETTI’S THEOREM OF RECIPROCAL DEFLECTIONS
FIXED AND CONTINUOUS BEAMS
EFFECT OF FIXIDITY
MOMENT-AREA METHOD
MACAULAY’S METHOD
CLAPEYRON’S THREE MOMENT EQUATION
MOMENT DISTRIBUTION METHOD
METHOD OF FLEXIBILITY COEFFICIENTS
BENDING OF CURVED BARS
BARS OF SMALL INITIAL CURVATURE
BARS OF LARGE INITIAL CURVATURE
STRESSES IN CIRCULAR RING AND CURVED BARS
DEFLECTION OF CURVED BARS, DEFLECTION BY STRAIN ENERGY
TORSION
CIRCULAR SHAFTS, POWER TRANSMISSION
TORSION OF TAPERED SHAFT, SHAFTS IN SERIES AND PARALLEL
STRAIN ENERGY IN TORSION, COMBINED BENDING AND TORSION
THIN TUBULAR SECTIONS
THIN WALLED SECTIONS
THIN RECTANGULAR MEMBERS
SPRINGS
CLOSE COILED HELICAL SPRINGS
SPRINGS IN SERIES AND PARALLEL
CONCENTRIC (CLUSTER) SPRINGS
OPEN COILED HELICAL SPRINGS
FLAT SPIRAL SPRINGS
LEAF OR LAMINATED SPRINGS
COLUMNS AND STRUTS
EULER’S THEORY
EQUIVALENT LENGTH
LIMITATIONS OF EULER’S FORMULA
RANKINE’S FORMULA
STRUT WITH ECCENTRIC LOAD, INITIAL CURVATURE, LATERAL LOADING
TIE WITH LATERAL LOADING
STRUTS OF VARYING CROSS-SECTION
CYLINDERS AND SPHERES
THIN CYLINDERS
THIN SPHERICAL SHELL
THIN CYLINDER WITH SPHERICAL ENDS
VOLUMETRIC STRAIN
WIRE WINDING OF THIN CYLINDERS
THICK CYLINDERS
COMPOUND TUBES
HUB ON SOLID SHAFT
THICK SPHERICAL SHELLS
ROTATING DISCS AND CYLINDERS
THIN ROTATING RING
DISC OF UNIFORM THICKNESS
LONG CYLINDER
DISC OF UNIFORM STRENGTH
COLLAPSE SPEED

THEORIES OF FAILURE
DESIGN OF THICK CYLINDRICAL SHELL
GRAPHICAL REPRESENTATIONS OF THEORIES OF FAILURE
CIRCULAR PLATES
SYMMETRICALLY LOADED CIRCULAR PLATES
UNIFORMLY DISTRIBUTED LOAD ON A SOLID PLATE
CENTRAL POINT LOAD ON SOLID PLATE
LOAD ROUND A CIRCLE ON A SOLID PLATE
ANNULAR RING, LOAD ROUND AN INNER EDGE
PLASTIC BENDING AND TORSION
PLASTIC THEORY OF BENDING
MOMENT OF RESISTANCE AT PLASTIC HINGE
SYMMETRICAL BENDING
UNSYMMETRICAL BENDING
COLLAPSE LOAD
TORSION OF CIRCULAR SHAFTS
COMBINED DIRECT AND BENDING STRESS
PLANE FRAME STRUCTURES
PERFECT FRAMES
REACTIONS AT THE SUPPORTS
STATICALLY DETERMINATE FRAMES
ASSUMPTIONS IN THE ANALYSIS OF FRAMES
SIGN CONVENTION
METHODS OF ANALYSIS
METHOD OF JOINTS
METHOD OF SECTIONS
PROPERTIES AND TESTING OF MATERIALS
MECHANICAL PROPERTIES
FACTOR SAFETY
TENSILE TESTING
COMPRESSION TESTING
TORSION TESTING
HARDNESS TESTING
IMPACT TESTING
COLUMN TESTING
CREEP TESTING
FATIGUE TESTING
SUMMARY, OBJECTIVE TYPE QUESTIONS, REVIEW QUESTIONS AT THE END OF EVERY MAJOR CHAPTER

BRIEFLY EXPLAINED TOPICS – A SAMPLE TO UNDERSTAND THE QUALITY OF THIS TEXTBOOK

STATICALLY INDETERMINATE SYSTEMS

When a system comprises two or more members of different materials, the forces in various members cannot be determined by the principle of statics alone. Such systems are known as statically indeterminate systems. In such systems, additional equations are required to supplement the equations of statics to determine the unknown forces. Usually, these equations are obtained from deformation conditions of the system and are known as compatibility equations. A compound bar is a case of an indeterminate system.

STRENGTH OF MATERIALS IES MASTER GATE MATERIAL : CLICK HERE

SHEAR FORCE AND BENDING MOMENT

A structural element which is subjected to loads trans- verse to its axis is known as a beam. In general, a beam is either free from any axial force or its effect is negligible. Analysis of beams involves the determination of shear force, bending sections.This chapter deals with the finding of shear force and bending beams. Analysis of beams to find the deflections is dealt in later chapter. moment and the deflections at various moment at a section of different kinds of beams.

Usually, a beam is considered horizontal and the loads vertical. Other cases are considered as exceptions. A point load is assumed to act at a concentrated or point, though in practice it may be distributed over a small area. length of the beam.The rate of loading may be uniform or may A distributed load is one which is spread over some vary from point point.

STRENGTH OF MATERIALS ACE GATE MATERIAL : CLICK HERE

TORSION

A shaft is an example of a member torsion. Shafts are widely used in engineering applications to transmit power point to another, from a motor to a machine tool, from an engine to the rear axle of an automobile or from a steam or hydraulic turbine to an electric generator The shafts used for the purpose may be solid or hollow. When a shaft is made to transmit power, a pure twisting from one couple or torque acts about its polar axis. Shear stresses are set up perpendicular to the radius at all transverse sections. As a result, complementary shear stresses are developed on the longitudinal planes which cause a distortion of filaments. As the cross-section across any transverse plane is symmetrical, the points remain at the same radial distance before and after the twist. The angle of twist is reckoned over a length of the shaft.

The assumptions made in the theory of torsion are as under

The material of the shaft is homogeneous, isotropic and perfectly elastic.
The material obeys Hooke’s law and the stress remains within limit of proportionality
The twisting couples act in the transverse planes only.
All radii remain straight after torsion.
Parallel planes normal to the axis do not warp or distort after torsion.
A cross-section at any axial length rotates as a rigid- plane, i.e., all diameters of a cross-section rotate through the same angle.

STRENGTH OF MATERIALS ACE GATE NOTES : CLICK HERE

CYLINDERS AND SPHERES

Cylinders and spheres subjected common in engineering practices such as steam boilers, tanks, chambers of engines, reservoirs, etc. These are also to fluid pressure are known as pressure vessels or shells. Due to the internal or the external pressure on the walls of a pressure vessel, stresses are induced in them from which the thickness can be determined while designing. In a cylindrical vessel, there are three principal stresses circumferential or hoop stress, longitudinal stress and radial stress.

A shell may be termed as thin or thick depending upon the ratio of the thickness of the wall to the diameter of the shell. If the ratio is less than aboutI to 15, a shell is considered as thin, otherwise it is thick. In a thin shell, it can be assumed that the hoop stresses are constant over the thickness and the radial stress is small and may be neglected.

STRENGTH OF MATERIALS AE/AEE NOTES : CLICK HERE

CIRCULAR PLATES

Many times, there are cases of loaded circular plates. The load may be symmetric or asymmetric about the central vertical axis of a horizontal plate. In symmetric loading, there can be one point load at the centre or a number uniformly distributed loads arranged can be solid or annular. Also, rigidly fixed edges of of point loads or symmetrically. The plates there can be simply supported or the plates. In all the cases, stresses are developed in the plates and deflection takes place. To develop the theory for asymmetric loading is very complex and thus only simple in this chapter. In case of beams, bending is about one horizontal axis. In plates, it is about two horizontal axes and is symmetric if the load is symmetric.