A steel bar of rectangular cross-section (20 x 50 mm) carries a tensile load P and is attached to a support by means of a round pin of diameter 20 mm. The allowable stresses for the bar in tension and the pin in shear are andsigma;allow = 150 MPa and andtau;allow = 75 MPa, respectively. What is the maximum permissible value of the load P?a)90 kNb)47 kNc)87 kNd)137 kNCorrect answer is option 'B'. Can you explain this answer?

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A steel bar of rectangular cross-section (20 x 50 mm) carries a tensile load P and is attached to a support by means of a round pin of diameter 20 mm. The allowable stresses for the bar in tension and the pin in shear are σ_allow = 150 MPa and τ_allow = 75 MPa, respectively. What is the maximum permissible value of the load P?

a)
90 kN
b)
47 kN
c)
87 kN
d)
137 kN

Correct answer is option 'B'. Can you explain this answer?

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A steel bar of rectangular cross-section (20 x 50 mm) carries a tensil...

Net area for tensile load
= 20 x (50 - 20) = 600 mm²
∴ P₁ (based on tensile stress)

Net area for shearing load

∴ P₂ (based on shearing stress)
= 75 x 2 x 0.785 x 400 = 47.1 kN
So, permissible value of Pis 47 kN.

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A steel bar of rectangular cross-section (20 x 50 mm) carries a tensile load P and is attached to a support by means of a round pin of diameter 20 mm. The allowable stresses for the bar in tension and the pin in shear are σallow = 150 MPa and τallow = 75 MPa, respectively. What is the maximum permissible value of the load P?a)90 kNb)47 kNc)87 kNd)137 kNCorrect answer is option 'B'. Can you explain this answer?

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A steel bar of rectangular cross-section (20 x 50 mm) carries a tensile load P and is attached to a support by means of a round pin of diameter 20 mm. The allowable stresses for the bar in tension and the pin in shear are σallow = 150 MPa and τallow = 75 MPa, respectively. What is the maximum permissible value of the load P?a)90 kNb)47 kNc)87 kNd)137 kNCorrect answer is option 'B'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about A steel bar of rectangular cross-section (20 x 50 mm) carries a tensile load P and is attached to a support by means of a round pin of diameter 20 mm. The allowable stresses for the bar in tension and the pin in shear are σallow = 150 MPa and τallow = 75 MPa, respectively. What is the maximum permissible value of the load P?a)90 kNb)47 kNc)87 kNd)137 kNCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A steel bar of rectangular cross-section (20 x 50 mm) carries a tensile load P and is attached to a support by means of a round pin of diameter 20 mm. The allowable stresses for the bar in tension and the pin in shear are σallow = 150 MPa and τallow = 75 MPa, respectively. What is the maximum permissible value of the load P?a)90 kNb)47 kNc)87 kNd)137 kNCorrect answer is option 'B'. Can you explain this answer?.

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