Calculating the Thickness of Angled Welds: How Do I Determine the A-Dimension?

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The discussion focuses on calculating the thickness of angled welds, specifically the A-dimension. The formula provided for determining the shear stress is tau = Ssa = F/[(2*L)(0.7071*a)], where Ssa represents the allowable shear stress. Participants emphasized the importance of breaking down forces into components and calculating moments to accurately assess the weld thickness. Understanding these calculations is crucial for ensuring structural integrity in non-vertical or non-horizontal weld applications.

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  • Understanding of shear stress and its calculations
  • Familiarity with weld design principles
  • Knowledge of force decomposition in structural analysis
  • Basic grasp of moment calculations in engineering
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  • Research the application of the formula tau = Ssa = F/[(2*L)(0.7071*a)] in different welding scenarios
  • Study the principles of force decomposition in angled welds
  • Learn about moment calculations and their impact on weld design
  • Explore standards and guidelines for allowable shear stress in welding
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Weld engineers, structural designers, and anyone involved in the analysis and design of welded joints, particularly in non-standard orientations.

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Hi, ok, so the task is to define the thickness of th weld, the so-called a-dimension. If the welds were either vertical or horizontal, I'd have no problem, but they're not. So do I divide the force into components or perhaps the welds? What about how to calculate the moment caused by the force, what is the "lever" of the force on the welds? Any help sure would be appreciated! Thanks guys!

http://tenttiarkisto.fi/exams/9802.1.pdf
 
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You could use tau = Ssa = F/[(2*L)(0.7071*a)], where Ssa = allowable shear stress.
 

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