A 60mm long and 6mm thick fillet weld carries a steady load of 15kN along the weld. The shear strength of the weld material is equal to 200MPa. 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 D3.4 PPFW=0.707t×Le×τs
{here PFW → parallel filter weld} 15×1030.707×6×60=τs
or τs=58.9344MPa
Given shear strength of material =200MPa FOS=20058.9344=3.4