The document discusses transverse loading on beams and stress in beams. It defines different types of beams including cantilever, simply supported, overhanging, and continuous beams. It also defines types of loads such as point loads and uniformly distributed loads. It explains shear force as the sum of vertical forces on one side of a point on the beam. Bending moment is defined as the sum of moments due to vertical forces. Shear force diagrams and bending moment diagrams are used to show shear force and bending moment at every section of the beam due to transverse loading. An example problem is provided to illustrate calculating and drawing the shear force and bending moment diagrams for a cantilever beam with a point load.
This document gives the class notes of Unit 3 Compound stresses. Subject: Mechanics of materials.
Syllabus contest is as per VTU, Belagavi, India.
Notes Compiled By: Hareesha N Gowda, Assistant Professor, DSCE, Bengaluru-78.
This document gives the class notes of Unit 3 Compound stresses. Subject: Mechanics of materials.
Syllabus contest is as per VTU, Belagavi, India.
Notes Compiled By: Hareesha N Gowda, Assistant Professor, DSCE, Bengaluru-78.
What is Bending Moment?
What are its sign conventions?
What is BMD?
What is the difference between moment and bending moment?
Find out answers for these questions and many more in this presentation.
This document gives the class notes of Unit 6: Bending and shear Stresses in beams. Subject: Mechanics of materials.
Syllabus contest is as per VTU, Belagavi, India.
Notes Compiled By: Hareesha N Gowda, Assistant Professor, DSCE, Bengaluru-78.
In engineering, deflection is the degree to which a structural element is displaced under a load. It may refer to an angle or a distance.
The deflection distance of a member under a load is directly related to the slope of the deflected shape of the member under that load, and can be calculated by integrating the function that mathematically describes the slope of the member under that load. Deflection can be calculated by standard formula (will only give the deflection of common beam configurations and load cases at discrete locations), or by methods such as virtual work, direct integration, Castigliano's method, Macaulay's method or the direct stiffness method, amongst others. The deflection of beam elements is usually calculated on the basis of the Euler–Bernoulli beam equation while that of a plate or shell element is calculated using plate or shell theory.
Bending Stresses are important in the design of beams from strength point of view. The present source gives an idea on theory and problems in bending stresses.
Learn Online Courses of Subject Engineering Mechanics of First Year Engineering. Clear the Concepts of Engineering Mechanics Through Video Lectures and PDF Notes. Visit us: https://ekeeda.com/streamdetails/subject/Engineering-Mechanics
Elastic Strain Energy due to Gradual Loading.
Elastic Strain Energy due to Sudden Loading.
Elastic Strain energy due to impact loading.
Elastic Strain Energy due to Principal Stresses.
Energy of Dilation And Distortion.
What is Bending Moment?
What are its sign conventions?
What is BMD?
What is the difference between moment and bending moment?
Find out answers for these questions and many more in this presentation.
This document gives the class notes of Unit 6: Bending and shear Stresses in beams. Subject: Mechanics of materials.
Syllabus contest is as per VTU, Belagavi, India.
Notes Compiled By: Hareesha N Gowda, Assistant Professor, DSCE, Bengaluru-78.
In engineering, deflection is the degree to which a structural element is displaced under a load. It may refer to an angle or a distance.
The deflection distance of a member under a load is directly related to the slope of the deflected shape of the member under that load, and can be calculated by integrating the function that mathematically describes the slope of the member under that load. Deflection can be calculated by standard formula (will only give the deflection of common beam configurations and load cases at discrete locations), or by methods such as virtual work, direct integration, Castigliano's method, Macaulay's method or the direct stiffness method, amongst others. The deflection of beam elements is usually calculated on the basis of the Euler–Bernoulli beam equation while that of a plate or shell element is calculated using plate or shell theory.
Bending Stresses are important in the design of beams from strength point of view. The present source gives an idea on theory and problems in bending stresses.
Learn Online Courses of Subject Engineering Mechanics of First Year Engineering. Clear the Concepts of Engineering Mechanics Through Video Lectures and PDF Notes. Visit us: https://ekeeda.com/streamdetails/subject/Engineering-Mechanics
Elastic Strain Energy due to Gradual Loading.
Elastic Strain Energy due to Sudden Loading.
Elastic Strain energy due to impact loading.
Elastic Strain Energy due to Principal Stresses.
Energy of Dilation And Distortion.
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Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
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11. SHEAR FORCE
The shear force at any point along a loaded beam
may be defined as the algebraic sum of all vertical
forces acting on either side of the point on the beam.
12. BENDING MOMENT
Bending moment at any point along a loaded beam
may be defined as the sum of the moments due to all
vertical forces acting on either side of the point on
the beam.
13. SHEAR FORCE AND BENDING MOMENT
DIAGRAMS
A shear force diagram (SFD) which shows the shear
force at every section of the beam due to transverse
loading on it.
A bending moment diagram (BMD) is a diagram which
shows the bending moment at every section of the beam
due to transverse loading on it.
14.
15. Shear Force Calculation
SF at B = 1.5 KN
SF at C = 1.5 + 2 = 3.5 KN
SF at A = 1.5 + 2 = 3.5 KN
Bending Moment Calculation
BM at B = 0
BM at C = -1.5 x 0.5 = -0.75 KN-m
BM at A = (-1.5 x 1.5) + (-2 x 1) = -4.25 KN-m
1. Draw Shear force and Bending moment diagram for a
cantilever beam of span 1.5 m carried point load as
shown in Fig.
18. Shear Force calculation
SF at B = 0
SF at C = 1x1.5 =1.5 KN
SF at A = 1.5 KN
Bending Moment calculation
BM at B = 0
BM at C = 1x1.5x(1.5/2) =1.125 KN
BM at A = 1x1.5x(1.5/2 + 0.5)
=1.875 KN
A Cantilever of length 2.0 carries a uniformly distributed load of 1 KN/m
run over a length of 1.5 m from the free end. Draw the shear force and
bending moment diagrams for the cantilever.
19. Find the reactions at A & B
1.Taking moment at A
2. Sum of forces upwards = Sum of forces downwards
20. SF Calculation
SF at B = -W/2
SF at C = -W/2 + W
= +W/2
BM Calculation
BM at B = 0
SF at C = W/2 x L/2
= WL/4
BM at A = 0
Note:
23. REACTIONS AT A & B
Shear Force
SF at B = -0.5 wl
SF at C = -0.5 wl + w (l/2)
= 0
SF at A = +o.5wl
Bending Moment
BM at B = 0
SF at C = 0.5 wl (l) - w (l/2)
(l/4)
= wl2/8
SF at A = 0
24.
25. SHEAR FORCE CALCULATION
SF at B = - 50 KN
SF at D = -50 + 40 = -10 KN
SF at C = -50 + 40 + (10 x 4) = +30 KN (Without Point Load)
SF at C = 30 + 50 = +80 KN
SF at A = +80 KN
SF at E = -RB + 40 + 10 (x-4)
0 = -50 + 40 + 10 (x-4)
X = 5 m