Scotch Yoke
Second Inversion (Scotch Yoke) If any of the slide-blocks of the first inversion is fixed, the second inversion of the
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Elliptical Trammel
First Inversion (Elliptical Trammel) It is a device to draw an ellipse. Fig. shows an elliptical trammel in which two
Read MoreDouble Slider-Crank Chain
A kinematic chain consisting of two turning pairs and two sliding pairs is called double slider-crank chain as shown in
Read MorePlanar Mechanism with Lower Pairs
Planar Mechanism Taking a different link as the fixed link, the slider-crank mechanism shown in Fig. (a) can be inverted
Read MoreThe Slider Crank Chain
When one of the turning pairs of a four-bar chain is replaced by a sliding pair, it becomes a single
Read MoreLine Defects
Line defects are linear and one dimensional defect in which one surface of the crystal slips with respect to the
Read MoreBurger’s Vector
Burger vector is defined as the vector which indicate direction and magnitude of displacement of dislocation within a lattice. Burger’s
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Hydro-electric Power Plants
What is hydraulic electric power? Hydro-electric power is the power obtained from the energy of falling water whereas hydro-electric power
Read MoreNature of Bending Stress
Bending Stress (i) Simply supported beam: When a simply supported beam is subjected to a sagging bending moment, the cross-section
Read MoreLimitations of Equation of Pure Bending
The equation of bending is applicable when the beam is free from shear force, i.e., the equation of bending is
Read MoreTransverse Strain
In figure shown, fibres are in compression above neutral surface or layer in longitudinal direction, so in transverse direction, fibres
Read MoreAnalysis of stress in pure bending
Normal Stresses in beams As per Hooke’s law, εx = σ/E Here, σ is the bending stress in longitudinal direction
Read MoreAnalysis of strain in pure bending
Normal strain in beams Consider a simply supported beam of length L subjected to moments at ends A and B
Read MoreAssumptions in Theory of Pure Bending
Theory of Pure Bending The material of the beam is homogeneous, isotropic, and linear elastic, in which Hooke’s law is
Read MoreSimple bending or pure bending
Consider a simply supported beam AB of length L subjected to moment M0 at its ends as shown in figures.
Read MoreDeflection of Beam
For design purpose, a beam should be so designed that it has adequate stiffness so that the deflections are within
Read MoreBending Moment
Bending moment at section of a beam is defined as the algebraic sum of the moments about the section as
Read MoreElastic Constants
Elastic constants are those factors which determine the deformation produced by a given stress system acting on material. Modulus of
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