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MECHANICS OF DEFORMABLE BODIES�NA20201

Ritwik Ghoshal

Autumn 2025

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Bending stress in a beam

  • What are statically determinate and indeterminate ?
  • Normal stress and shear stress – how do they appear in a beam ?)
  • What is vertical shear and longitudinal shear ? Stress resultants ?

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Pure bending

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Pure bending

y

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Bending deformation

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Strain due to bending

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Design a beam

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Problem 1

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Moment of inertia

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