Table of Contents
What is unsymmetrical reagent?
Unsymmetrical reagents : are those reagents which are made up of two different atoms. For example : H2O , HBr. Addition of HBr follows markovnikov addition. Negative part of the reagent will get attached to the carbon containing less number of hydrogens.
What is pure bending of beams?
Pure bending: If a beam is loaded in such a fashion that the shear forces are zero on any cross-section perpendicular to the longitudinal axis of the beam and hence it is subjected to constant bending moment then the beam is said to be in the state of pure bending.
What is a curved beam?
Beam whose axis is not straight and is curved in the elevation is said to be a curved beam. If the applied loads are along the y direction and the span of the beam is along the x direction, the axis of the beam should have a curvature in the xy plane.
What is the difference between symmetrical and unsymmetrical faults?
Answer: Symmetrical faults are those faults which involve with all the three phase. it simply means that symmetrical faults affect all the three phases. On the other side, unsymmetrical faults are those faults in which either one or two phase involve.
What are the assumptions of unsymmetric bending?
UNSYMMETRICAL BENDING Assumptions 1. The plane sections of the beam remain plane after bending 2. The material of the beam is homogeneous and linearly elastic. 3. There is no net internal axial force.
When does a beam bend or twist?
When the plane of loads acting transversely on a beam does not contain any of the beam’s axes of symmetry, the loads may tend to produce twisting as well as bending. Figure 3.53 shows a horizontal channel twisting even though the vertical load H acts through the centroid of the section.
What is zero stress at the centroid of a beam?
Zero stress exists at the centroid and the line of centroid is the Neutral Axis (N.A) 3. •Bending stress and strain at any point may be computed as 5. UNSYMMETRICAL BENDING Assumptions 1. The plane sections of the beam remain plane after bending 2.
What is the shear center of a beam?
The bending axis of a beam is the longitudinal line through which transverse loads should pass to preclude twisting as the beam bends. The shear center for any section of the beam is the point in the section through which the bending axis passes.