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By
Daniel Robert. S
Mohammed Mubeen. A
 Mechanics of materials, also
called strength of materials, is a subject
which deals with the behavior of solid
objects s...
 A rigid body is defined as a body on
which the distance between two points
never changes whatever be the force
applied o...
A deformable body is defined as a body
on which the distance between two
points changes under action of some
forces when a...
Stress is the applied force or system of
forces that tends to deform a body.
 A force that attempts to pull apart or
stretch a material.
 Example :
 Ductility is a solid material's ability to
deform under tensile stress.
Copper wires
 A force that attempts to squeeze or
compress a material.
 Here, the UTM is testing a concrete block.
 A material is brittle if, when subjected to
stress, it breaks without insignificant
deformation.
 Glass is a good examp...
 Young's modulus, also known as
the tensile modulus or elastic modulus, is
a measure of the stiffness of
an elastic mater...
Skating
 Strength is the ability to resist
deformation.
 The strength of a component is usually
considered based on the maximum ...
 Poisson’s ratio, named after Simeon
Poisson, is the negative ratio of
transverse to axial strain.
 When a material is c...
Baking
Thermal stress acting on the rails.
 Stiffness is the rigidity of an object the
extent to which it resists deformation in
response to an applied force
Golf b...
 Axial loading occurs when an object is
loaded so that the force is normal to the
axis that is fixed.
 The degree of expansion divided by the
change in temperature is called the
material's co-efficient of thermal
expansion ...
 Tensile strength (TS) or ultimate
strength, is the maximum stress that a
material can withstand while being
stretched or...
 Bending (also known as flexure)
characterizes the behavior of a
slender structural element subjected to
an external load...
 Structural stability can be defined as the
power to recover equilibrium.
 Compressive strength is the capacity of
a material or structure to withstand loads
tending to reduce size.
egg shell.
Spherical container carries Oil, Acid and
chemicals.
The wooden boards are joint using glue.
A traffic signal post
World’s largest overhanging roof- Busan
Cinema Center (South Korea)
High Speed Steel tools
Helical springs used in suspension
 Strain, represented by the Greek letter ε,
is a term used to measure the
deformation or extension of a body that
is subj...
Columns buckle due to over weight.
Cup & cone fracture in tension testing
Sagging In bridge occurs due to weight of
people.
Hogging happens in pole vault stick due to
his Weight.
Gun bullets made with two different
materials.
The central horizontal beam is a simply
supported beam.
In safety Nets, Tension acts in both X & Y
directions.
Water’s weight is distributed uniformly all
over the dams.
Inclined planes used for transporting
objects
Wood
The bar attains elastic deformation due to
self weight.
Short column in car parking.
Body of an airplane.
Pogo sticks uses the strain energy for
jumping.
Danyan Kunshan Grand Bridge
Cantilever house.
The thermal load applied on the rails
continuously.
Baseball bat.
The loads in the strings of suspension bridge
varies uniformly.
Connecting rod – material property
doesn't depend on direction.
A bending moment is the reaction
induced in a structural element when an
external force or moment is applied.
Stonehenge in England
Stepped Bolt
Key used in Lathe
Kite Surfing
Columns in White House
Archery
Destruction of buildings
Ironing !
 www.wikipedia.com
 www.britannica.com
 www.engineersedge.com
Some basics of Strength Of Materials..
Some basics of Strength Of Materials..
Some basics of Strength Of Materials..
Some basics of Strength Of Materials..
Some basics of Strength Of Materials..
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Some basics of Strength Of Materials..

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Some basic defintions of the topics used in Strength of Materials subject. Pictorial presentation is more than details. Many examples are provided as well.

Published in: Engineering
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Some basics of Strength Of Materials..

  1. 1. By Daniel Robert. S Mohammed Mubeen. A
  2. 2.  Mechanics of materials, also called strength of materials, is a subject which deals with the behavior of solid objects subject to stresses and strains.  The study of strength of materials often refers to various methods of calculating the stresses and strains in structural members, such as beams, columns, and shafts.
  3. 3.  A rigid body is defined as a body on which the distance between two points never changes whatever be the force applied on it.  Practically, there is no rigid body.
  4. 4. A deformable body is defined as a body on which the distance between two points changes under action of some forces when applied on it.
  5. 5. Stress is the applied force or system of forces that tends to deform a body.
  6. 6.  A force that attempts to pull apart or stretch a material.  Example :
  7. 7.  Ductility is a solid material's ability to deform under tensile stress. Copper wires
  8. 8.  A force that attempts to squeeze or compress a material.  Here, the UTM is testing a concrete block.
  9. 9.  A material is brittle if, when subjected to stress, it breaks without insignificant deformation.  Glass is a good example.
  10. 10.  Young's modulus, also known as the tensile modulus or elastic modulus, is a measure of the stiffness of an elastic material.  Named after a British Scientist THOMAS YOUNG  Its unit is “pa” or N/m2
  11. 11. Skating
  12. 12.  Strength is the ability to resist deformation.  The strength of a component is usually considered based on the maximum load that can be borne before failure.
  13. 13.  Poisson’s ratio, named after Simeon Poisson, is the negative ratio of transverse to axial strain.  When a material is compressed in one direction, it usually tends to expand in the other two directions perpendicular to the direction of compression.  This phenomenon is called the Poisson Effect.
  14. 14. Baking
  15. 15. Thermal stress acting on the rails.
  16. 16.  Stiffness is the rigidity of an object the extent to which it resists deformation in response to an applied force Golf bats have high stiffness
  17. 17.  Axial loading occurs when an object is loaded so that the force is normal to the axis that is fixed.
  18. 18.  The degree of expansion divided by the change in temperature is called the material's co-efficient of thermal expansion and generally varies with temperature.
  19. 19.  Tensile strength (TS) or ultimate strength, is the maximum stress that a material can withstand while being stretched or pulled before failing or breaking. Tensile strength is not the same as compressive strength and the values can be quite different.
  20. 20.  Bending (also known as flexure) characterizes the behavior of a slender structural element subjected to an external load applied perpendicularly to a longitudinal axis of the element.
  21. 21.  Structural stability can be defined as the power to recover equilibrium.
  22. 22.  Compressive strength is the capacity of a material or structure to withstand loads tending to reduce size.
  23. 23. egg shell.
  24. 24. Spherical container carries Oil, Acid and chemicals.
  25. 25. The wooden boards are joint using glue.
  26. 26. A traffic signal post
  27. 27. World’s largest overhanging roof- Busan Cinema Center (South Korea)
  28. 28. High Speed Steel tools
  29. 29. Helical springs used in suspension
  30. 30.  Strain, represented by the Greek letter ε, is a term used to measure the deformation or extension of a body that is subjected to a force or set of forces.  The strain of a body is generally defined as the change in length divided by the initial length.  ε = ΔL/L
  31. 31. Columns buckle due to over weight.
  32. 32. Cup & cone fracture in tension testing
  33. 33. Sagging In bridge occurs due to weight of people.
  34. 34. Hogging happens in pole vault stick due to his Weight.
  35. 35. Gun bullets made with two different materials.
  36. 36. The central horizontal beam is a simply supported beam.
  37. 37. In safety Nets, Tension acts in both X & Y directions.
  38. 38. Water’s weight is distributed uniformly all over the dams.
  39. 39. Inclined planes used for transporting objects
  40. 40. Wood
  41. 41. The bar attains elastic deformation due to self weight.
  42. 42. Short column in car parking.
  43. 43. Body of an airplane.
  44. 44. Pogo sticks uses the strain energy for jumping.
  45. 45. Danyan Kunshan Grand Bridge
  46. 46. Cantilever house.
  47. 47. The thermal load applied on the rails continuously.
  48. 48. Baseball bat.
  49. 49. The loads in the strings of suspension bridge varies uniformly.
  50. 50. Connecting rod – material property doesn't depend on direction.
  51. 51. A bending moment is the reaction induced in a structural element when an external force or moment is applied.
  52. 52. Stonehenge in England
  53. 53. Stepped Bolt
  54. 54. Key used in Lathe
  55. 55. Kite Surfing
  56. 56. Columns in White House
  57. 57. Archery
  58. 58. Destruction of buildings
  59. 59. Ironing !
  60. 60.  www.wikipedia.com  www.britannica.com  www.engineersedge.com

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