GATE ME 2026 Set 1 — Question 21
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Machine Design → Machine Elements → Bolted, Riveted & Welded Joints
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Question
A rectangular plate is perfectly welded to a gusset plate with parallel fillet weld joints as shown in the figure below. The length of the weld is and the fillet weld leg size is . The allowable shear strength of the weldment is . A tensile force is applied on the plate in a direction parallel to the length of the weld. Assuming the throat of the weld as the weakest section, the critical load is
Correct answer
(A) √(2) h l τₐₗₗ
Solution
For a parallel fillet weld, the critical section is the throat. The throat thickness is given by . The total area of the two parallel welds is . The critical load is the product of the allowable shear strength and the total throat area: .
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