1.2 - Physical significance of E, G and ν
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Practice Questions
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Define Young's modulus.
💡 Hint: Think about materials and their stiffness.
What does Poisson's ratio indicate?
💡 Hint: Consider how a rubber band behaves when pulled.
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Interactive Quizzes
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What does Young's modulus measure?
💡 Hint: Think about how different materials react to forces.
True or False: A high Poisson's ratio means more lateral contraction.
💡 Hint: Consider the behavior of materials when force is applied.
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Challenge Problems
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A cylindrical rod has a length of 2 m and a diameter of 0.05 m. If a tensile load of 2000 N is applied, calculate the elongation of the rod. Use E = 70 GPa.
💡 Hint: Use the formula ΔL = (σ*L)/(E) for elongation.
Considering the relationship between E, G, and ν, if a material has E = 150 GPa and ν = 0.2, find the shear modulus G.
💡 Hint: Apply the relationship between Young's modulus, Poisson's ratio, and shear modulus.
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