Lab 5P. 1

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Material Joining and Beam Bending

• Lab 5

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Beam Deflection

• Every object acts as a spring it will deflect
  when a force is applied
• Extent of deflection depends on force applied,
  material properties and object shape

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Differences in Deflection
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Moments of Inertia

• A larger moment of inertia means that the beam
  will be more resistant to deflection

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Stress and Strain Simple Definitions
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Stress and Strain Simple Definitions
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Cantilever Beam Bending Equation

• In this lab, you will measure the deflection d
  for various loads P. Using this information and
  other measurements, calculate Youngs modulus E
  for each beam.

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Material Joining

• A separate demonstration will be given on the
  welding procedure
• The final product will form a T shape

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Things to Consider

• How will joining the beams through welding affect
  the overall stiffness?
• Is there any advantage to choosing a more
  flexible material such as aluminum over a stiffer
  material such as steel?
• Hypothetically, if you were to design a 9x9
  robot spring quarter, which materials do you feel
  would be most suited for use?
• Which shapes would form a stiffer chassis?

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Questions ?