Difficulty: Easy
Correct Answer: Shear
Explanation:
Introduction / Context:
Fillet welds are widely used to join base plates, stiffeners, and brackets. Understanding the primary stress in the weld throat helps size the weld and check capacity against code-allowed stresses.
Given Data / Assumptions:
Concept / Approach:
The design of fillet welds is typically governed by shear stress on the effective throat area of the weld. While local components of tension/compression may exist under eccentric or combined loading, the controlling check for most base side fillet welds is shear on the throat and fusion faces, as per common design provisions.
Step-by-Step Solution:
Verification / Alternative check:
Weld design chapters compute required weld size by V = allowable_shear * throat_area, confirming shear as the governing stress for typical fillet welds at bases and stiffeners unless strong eccentricities cause additional bending distribution around the weld group.
Why Other Options Are Wrong:
Common Pitfalls:
Final Answer:
Shear.
Discussion & Comments