The course contents of the eighth edition of the book entitled, ‘A Textbook of Engineering Mechanics’ are planned in such a way that the book covers the complete course of first year students of all disciplines of Gautam Buddh Technical University, Lucknow (Formerly known as U.P. Technical University, Lucknow) strictly as per the latest syllabus prescribed by G.B. Technical University, Lucknow. This edition has been thoroughly revised and made up-to-date.
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  • Publisher: Laxmi Publications
  • Language: English
  • Chapter 1

    Basic Concepts of Engineering Mechanics Price 2.99  |  2.99 Rewards Points

    Engineering mechanics is that branch of science which deals with the behaviour of a
    body when the body is at rest or in motion. The engineering mechanics may be divided into
    Statics and Dynamics. The branch of science, which deals with the study of a body when the
    body is at rest, is known as Statics while the branch of science which deals with the study of a
    body when the body is in motion, is known as Dynamics. Dynamics is further divided into
    kinematics and kinetics. The study of a body in motion, when the forces which cause the
    motion are not considered, is called kinematics and if the forces are also considered for the
    body in motion, that branch of science is called kinetics.

  • Chapter 2

    Force System and Classification Price 2.99  |  2.99 Rewards Points

    Coplanar forces means the forces in a plane. The word collinear stands for the forces
    which are having common lines of action whereas the word concurrent stands for the forces
    which intersect at a common point. When several forces act on a body, then they are called a
    force system or a system of forces. In a system in which all the forces lie in the same plane, it is
    known as coplanar force system. Hence this chapter deals with a system of forces which are
    acting in the same plane and the forces are either having a common line of action or intersecting
    at a common point.

  • Chapter 3

    Moment of a Force and Varignon’s Theorem Price 2.99  |  2.99 Rewards Points

    The forces, which are having their line of actions parallel to each other, are known
    parallel forces. The two parallel forces will not intersect at a point. The resultant of two coplanar
    concurrent forces (i.e., forces intersecting at the same point) can be directly determined by the
    method of parallelogram of forces. This method along with other methods for finding resultant
    of collinear and concurrent coplanar forces, were discussed in earlier chapters.
    The parallel forces are having their lines of action parallel to each other. Hence, for
    finding the resultant of two parallel forces, (two parallel forces do not intersect at a point) the
    parallelogram cannot be drawn. The resultant of such forces can be determined by applying
    the principle of moments. Hence in this chapter first the concepts of moment and principle of
    moments will be dealt with. Thereafter the methods of finding resultant of parallel and even
    non-parallel forces will be explained.

  • Chapter 4

    Equilibrium of Coplanar Force System and Free Body Diagram Price 2.99  |  2.99 Rewards Points

    When some external forces (which may be concurrent or parallel) are acting on a
    stationary body, the body may start moving or may start rotating about any point. But if the
    body does not start moving and also does not start rotating about any point, then the body* is
    said to be in equilibrium. In this chapter, the conditions of equilibrium for coplanar concurrent
    forces (i.e., forces meeting at a point) and for coplanar parallel forces will be described. Also
    the concept of free body diagram, different types of support reactions and determination of
    reactions will be explained.

  • Chapter 5

    Determination of Support Reactions Price 2.99  |  2.99 Rewards Points

    When a number of forces are acting on a body, and the body is supported on another
    body, then the second body exerts a force known as reactions on the first body at the points of
    contact so that the first body is in equilibrium. The second body is known as support and the
    force, exerted by the second body on the first body, is known as support reactions.

  • Chapter 6

    Friction Price 2.99  |  2.99 Rewards Points

    When a solid body slides over a stationary solid body, a force is exerted at the surface of
    contact by the stationary body on the moving body. This force is called the force of friction and
    is always acting in the direction opposite to the direction of motion. The property of the bodies
    by virtue of which a force is exerted by a stationary body on the moving body to resist the
    motion of the moving body is called friction. Friction acts parallel to the surface of contact and
    depends upon the nature of surface of contact.

  • Chapter 7

    Plane Truss Price 2.99  |  2.99 Rewards Points

    A structure made up of several bars (or members) riveted or welded together is known
    as truss. The isometric view of a structure made of trusses is shown in Fig. 7.1 (a) and front
    view is shown in Fig. 7.1 (b). If the members of the structure are hinged or pin-joined, then the
    structure is known as a Frame. Hence the difference between truss and frame is that incase of
    truss members are riveted or welded whereas incase of frame the members are hinged or pinjoined.
    If the frame is composed of such members which are just sufficient to keep the frame in
    equilibrium, when the frame is supporting an external load, then the frame is known as perfect frame. Though in actual practice the members are welded or riveted together at their joints,
    yet for calculation purposes the joints are assumed to be hinged or pin-joined. In this chapter,
    we shall discuss how to determine the axial forces in the members of a perfect frame, when it
    is subjected to some external load.

  • Chapter 8

    Beams (Shear Force and Bending Moment) Price 2.99  |  2.99 Rewards Points

    The following are the important types of beams :
    1. Cantilever beam, 2. Simply supported beam,
    3. Overhanging beam, 4. Fixed beams, and
    5. Continuous beam.
    8.1.1. Cantilever Beam. A beam which is fixed at one end and free at the other end, is
    known as cantilever beam. Such beam is shown in Fig. 8.1. At the fixed end, there will be
    fixing moment. Also at the fixed end, there can be horizontal and vertical reactions, depending
    upon the type of load acting on the beam.

  • Chapter 9

    Centroid and Moment of Inertia Price 2.99  |  2.99 Rewards Points

    Centre of gravity of a body is the point through which the whole weight of the body acts.
    A body is having only one centre of gravity for all positions of the body. It is represented by
    C.G. or simply G.

  • Chapter 10

    Kinematics of Rigid Bodies Price 2.99  |  2.99 Rewards Points

    Kinematics is that branch of Engineering Mechanics which deals with motion of particles
    and bodies without consideration of forces required to produce them. Hence, the term kinematic
    stands for the displacement, velocity and acceleration of a particle or of a body. Particle is a
    body whose size can be neglected whereas the rigid body is a body in which the distance
    between any two points remains fixed for all the time.

  • Chapter 11

    Kinetics of Rigid Bodies Price 2.99  |  2.99 Rewards Points

    Kinetics is that branch of Engineering Mechanics which deals with the force system
    which produces acceleration and resulting motion of bodies. In the previous chapter i.e., chapter
    of Kinematics of Rigid Bodies, we have dealt with the motion of the bodies (i.e., displacement,
    velocity and acceleration of Rigid bodies) without consideration of the forces which produce
    these motion.

  • Chapter 12

    Simple Stresses and Strains Price 2.99  |  2.99 Rewards Points

    When an external force acts on a body, the body tends to undergo some deformation.
    Due to cohesion between the molecules, the body resists deformation. This resistance by which
    material of the body opposes the deformation is known as strength of material. Within a
    certain limit (i.e., in the elastic stage) the resistance offered by the material is proportional to
    the deformation brought out on the material by the external force. Also within this limit the
    resistance is equal to the external force (or applied load). But beyond the elastic stage, the
    resistance offered by the material is less than the applied load. In such a case, the deformation
    continues, until failure takes place.

  • Chapter 13

    Elastic Constants Price 2.99  |  2.99 Rewards Points

    When a body is subjected to an axial tensile load, there is an increase in the length of
    the body. But at the same time there is a decrease in other dimensions of the body at right
    angles to the line of action of the applied load. Thus the body is having axial deformation and
    also deformation at right angles to the line of action of the applied load (i.e., lateral deformation).
    This chapter deals with these deformations, Poisson’s ratio, volumetric strains, bulk modulus,
    relation between Young’s modulus and modulus of rigidity and relation between Young’s
    modulus and bulk modulus.

  • Chapter 14

    Strain Energy and Impact Loading Price 2.99  |  2.99 Rewards Points

    Whenever a body is strained, the energy is absorbed in the body. The energy, which is
    absorbed in the body due to straining effect is known as strain energy. The straining effect
    may be due to gradually applied load or suddenly applied load or load with impact. Hence the
    strain energy will be stored in the body when the load is applied gradually or suddenly or with
    an impact. The strain energy stored in the body is equal to the work done by the applied load
    in stretching the body.

  • Chapter 15

    Bending of Beams Price 2.99  |  2.99 Rewards Points

    When some external load acts on a beam, the shear force and bending moments are set
    up at all sections of the beam. Due to the shear force and bending moment, the beam undergoes
    certain deformation. The material of the beam will offer resistance or stresses against
    these deformations. These stresses with certain assumptions can be calculated. The stresses
    introduced by bending moment are known as bending stresses. In this chapter, the theory of
    pure bending, expression for bending stresses, bending stress in symmetrical sections will be
    discussed.

  • Chapter 16

    Theory of Torsion Price 2.99  |  2.99 Rewards Points

    A shaft is said to be in torsion, when equal and opposite torques are applied at the two
    ends of the shaft. The torque is equal to the product of the force applied (tangentially to the
    ends of a shaft) and radius of the shaft. Due to the application of the torques at the two ends,
    the shaft is subjected to a twisting moment. This causes the shear stresses and shear strains
    in the material of the shaft. Twisting moment is due to twist.

  • Chapter 17

    Objective Type Questions Price 2.99  |  2.99 Rewards Points

    Objective Type Questions

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