रिवेटेड जोड़ की ताकत से मूल ठोस प्लेट की ताकत के अनुपात को जोड़ की ________ कहा जाता है।

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  1. कठोरता
  2. ताकत
  3. दक्षता
  4. सटीकता

Answer (Detailed Solution Below)

Option 3 : दक्षता
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Detailed Solution

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स्पष्टीकरण:

रिवेटेड जोड़ की दक्षता को एक अछेदित स्थिति में प्लेट की ताकत के अनुपात के रूप में परिभाषित किया गया है।

\(\eta = \frac{{Strength\;of\;riveted\;joint}}{{Strength\;of\;unriveted\;solid\;plate}}\)

जैसे रिवेटेड जोड़ की ताकत जोड़ की विदरण ताकत, अपरूपण ताकत या संदलन ताकत पर निर्भर करती है, दक्षता विदरण दक्षता, अपरूपण दक्षता और संदलन दक्षता हो सकती है।

  • विदरण दक्षता: रिवेटेड जोड़ की विदरण ताकत / अरिवेटेड ठोस प्लेट की ताकत


\(\begin{array}{l} {\eta _t} = \frac{{Tearing\;strength}}{{Strength\;of\;solid\;plate}}\\ {\eta _t} = \frac{{\left( {p - d} \right)t\;{\sigma _t}}}{{{p_t}\;{\sigma _t}}} = \frac{{p - d}}{p} \end{array}\)

  • अपरूपण दक्षता: रिवेटेड जोड़ की अपरूपण ताकत / अरिवेटेड ठोस प्लेट की ताकत


\({\eta _s} = \frac{\pi }{4}\left( {\frac{{{\sigma _s}}}{{{\sigma _t}}}} \right)\left( {\frac{{{d^2}}}{{pt}}} \right)kn\)

k प्रभावी सतह क्षेत्र है (दोहरे अपरूपण के लिए k = 2), n पिच की लंबाई में रिवेट की संख्या है

  • संदलन दक्षता: रिवेटेड जोड़ की संदलन ताकत / अरिवेटेड ठोस प्लेट की ताकत


\(\begin{array}{l} {\eta _c} = \frac{{Crushing\;strength}}{{Strength\;of\;solid\;plate}} = \frac{{ndt\;{\sigma _c}}}{{pt\;{\sigma _t}}} = n\left( {\frac{d}{p}} \right)\left( {\frac{{{\sigma _c}}}{{{\sigma _t}}}} \right)\\ \end{array}\)

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