What will be the efficiency of single riveted lap joint of 10 mm thick plate with rivet diameter of 20 mm having the pitch of 50 mm? [Given: Permissible tensile stress in plate = 150 MPa; Permissible shear stress in rivet = 100 MPa; Permissible crushing stress in rivets = 200 MPa; π = 3.14]

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What will be the efficiency of single riveted lap joint of 10 mm thick plate with rivet diameter of 20 mm having the pitch of 50 mm? [Given: Permissible tensile stress in plate = 150 MPa; Permissible shear stress in rivet = 100 MPa; Permissible crushing stress in rivets = 200 MPa; π = 3.14]

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Answer 1

Concept:

The efficiency of a riveted joint is the ratio of the strength of the joint (minimum of tearing, shearing, or crushing strength) to the strength of the solid plate without holes.

Given:

Plate thickness, t = 10 mm

Rivet diameter, d = 20 mm

Pitch of rivets, p = 50 mm

Permissible tensile stress in plate = 150 MPa

Permissible shear stress in rivet = 100 MPa

Permissible crushing stress in rivet = 200 MPa

π = 3.14

Calculation:

Tearing strength of plate,

Shearing strength of rivet,

Crushing strength of rivet,

Strength of joint is minimum of tearing, shearing and crushing:

Strength of solid plate (without rivet hole),

Efficiency of the joint,

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Question

What will be the efficiency of single riveted lap joint of 10 mm thick plate with rivet diameter of 20 mm having the pitch of 50 mm? [Given: Permissible tensile stress in plate = 150 MPa; Permissible shear stress in rivet = 100 MPa; Permissible crushing stress in rivets = 200 MPa; π = 3.14]

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Detailed Solution

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