For a simply supported beam subjected to a uniformly distributed load, what is t

Practice Questions

Q1
For a simply supported beam subjected to a uniformly distributed load, what is the deflection at the center?
  1. 5WL^3/48EI
  2. WL^3/3EI
  3. WL^4/8EI
  4. WL^3/8EI

Questions & Step-by-Step Solutions

For a simply supported beam subjected to a uniformly distributed load, what is the deflection at the center?
  • Step 1: Identify the type of beam. In this case, it is a simply supported beam.
  • Step 2: Understand the load applied. Here, it is a uniformly distributed load (w) across the length of the beam.
  • Step 3: Know the variables involved: W is the total load, L is the length of the beam, E is the modulus of elasticity of the material, and I is the moment of inertia of the beam's cross-section.
  • Step 4: Use the formula for deflection at the center of the beam: δ = 5WL^3 / 48EI.
  • Step 5: Plug in the values for W, L, E, and I into the formula to calculate the deflection (δ).
  • Beam Deflection – Understanding how beams deform under load, specifically the calculation of deflection for simply supported beams with uniformly distributed loads.
  • Material Properties – Knowledge of the modulus of elasticity (E) and moment of inertia (I) as they relate to beam deflection.
  • Load Distribution – Recognizing the effects of uniformly distributed loads on structural elements.
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