Math Problem Statement
A cantilever beam of 2 m length has a load of 300 N applied at the free end of the beam. Determine the deflection at the free end (Hint: use Superposition formula). E = 200 GPa, and I = 50 x 10-9 m4.
0.037 m
0.547 m
0.800 m
0.080 m
Solution
To determine the deflection at the free end of a cantilever beam under a load applied at the free end, we use the standard formula:
where:
- is the deflection at the free end,
- is the applied load,
- is the length of the beam,
- is the modulus of elasticity,
- is the moment of inertia.
Given values:
- ,
- ,
- ,
- .
Substituting these into the formula:
Calculating:
So, the deflection at the free end of the beam is 0.080 m.
The correct answer is 0.080 m.
Would you like more details or have any questions?
Here are 5 related questions to explore further:
- How would the deflection change if the length of the beam were doubled?
- What happens to the deflection if the applied load is halved?
- How does the moment of inertia influence the deflection of the beam?
- Can the superposition formula be used for beams with varying cross-sections?
- How would you calculate the deflection if the load was applied at the midpoint instead of the free end?
Tip: The modulus of elasticity () is a material property that indicates the material's stiffness. The higher the , the less a material deforms under a given load.
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Math Problem Analysis
Mathematical Concepts
Structural Mechanics
Beam Deflection
Cantilever Beam
Formulas
δ = (P * L^3) / (3 * E * I)
Theorems
Superposition Principle in Beam Deflection
Suitable Grade Level
Undergraduate Engineering
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