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Virtual work method can be applied when
  • a)
    Supports are moving
  • b)
    Supports are not moving
  • c)
    Can be applied in both case
  • d)
    Can be applied in neither cases
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Virtual work method can be applied whena)Supports are movingb)Supports...

Supports moving vs. Supports not moving in Virtual work method:


- Supports moving:
In virtual work method, the principle of virtual work is based on the equilibrium of forces and moments. When supports are moving, the forces and moments acting on the structure are constantly changing, making it difficult to apply the virtual work method accurately. The calculations become complex as the system is dynamic and the equilibrium conditions keep changing.

- Supports not moving:
On the other hand, when supports are not moving, the system is in a static equilibrium. This means that the forces and moments acting on the structure are constant and can be easily analyzed using the virtual work method. The static nature of the system allows for simpler calculations and accurate results when applying the virtual work method.

Therefore, the virtual work method can be effectively applied when supports are not moving, as it simplifies the analysis and ensures accurate results.
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Community Answer
Virtual work method can be applied whena)Supports are movingb)Supports...
It is required for structure to be stable for application of this method.
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