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Question

A 60 mm long and 6 mm thick fillet weld carries a steady load of 15 kN along the weld. The shear strength of the weld material is equal to 200 MPa. The factor of safety is

A
6.8
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B
4.8
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C
2.4
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D
3.4
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Solution

The correct option is D 3.4
PPFW=0.707 t×Le×τs
{here PFW parallel filter weld}
15×1030.707×6×60=τs
or τs=58.9344 MPa
Given shear strength of material
=200 MPa
FOS=20058.9344=3.4

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