स्तंभ A के दोनों सिरे आबद्ध हैं, और स्तंभ B का एक सिरा आबद्ध है और दूसरा सिरा मुक्त है। स्तंभ A और स्तंभ B के व्याकुंचन भार का अनुपात है:

This question was previously asked in
HPCL Engineer Mechanical 04 Nov 2022 Official Paper (Shift 2)
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  1. 1
  2. 16
  3. 0.5
  4. 2

Answer (Detailed Solution Below)

Option 2 : 16
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अवधारणा:

अंतिम स्थिति

दोनों छोर टिका हुआ

एक छोर स्थिर दूसरा मुक्त

दोनों छोर तय

एक छोर स्थिर और दूसरा टिका हुआ

प्रभावी लंबाई (L e )

एल

2एल

1/2

\(\frac{L}{{\sqrt 2 }}\)


अपंगकारी भार:

\(P = \frac{{{\pi ^2}EI}}{{L_e^2}}\)

गणना:

दोनों छोर स्तंभ A के लिए तय किए गए हैं,

एल = एल/ 2

एक छोर स्थिर तथा दूसरा छोर मुक्त स्तंभ B,

एल = 2एल

2 - दोनों सिरे स्थिर : L e1 = L/2

\(\frac{{{P_A}}}{{{P_B}}} = \left( {\frac{{{L_{eB}}}}{{{L_{eA}}}}} \right)_{eff}^2 = {\left( {\frac{{2L}}{{L/2}}} \right)^2}=16\)

पी 1 : पी 2 = 16 : 1

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