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Figure shows the stresses acting on a element ABCD. What will be the normal stress on the plane BE which is inclined at 45° to the plane BC?

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  1. 25 N/mm2
  2. 75 N/mm2
  3. 105 N/mm2
  4. 30 N/mm2

Answer (Detailed Solution Below)

Option 3 : 105 N/mm2
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Detailed Solution

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Concept:

To calculate the normal stress on an inclined plane at an angle , use the stress transformation equation:

Given:

Calculation:

 

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