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Thickness of Plates given Load Carried by Parallel Fillet Weld Calculator

Thickness of Plate Formula:

\[ t_{plate} = \frac{W}{1.414 \times \tau \times L_{parallel}} \]

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1. What is Thickness of Plates given Load Carried by Parallel Fillet Weld?

Definition: This calculator determines the required thickness of plates based on the load carried by parallel fillet welds, shear stress, and weld length.

Purpose: It helps engineers and designers ensure proper plate thickness for welded joints under specific loading conditions.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ t_{plate} = \frac{W}{1.414 \times \tau \times L_{parallel}} \]

Where:

  • \( t_{plate} \) — Thickness of plate (meters)
  • \( W \) — Load on weld (Newtons)
  • \( \tau \) — Shear stress (Pascals)
  • \( L_{parallel} \) — Length of parallel fillet weld (meters)

Explanation: The formula calculates the minimum plate thickness required to safely carry the applied load through the parallel fillet welds.

3. Importance of Plate Thickness Calculation

Details: Proper plate thickness ensures structural integrity, prevents weld failure, and maintains safety margins in welded connections.

4. Using the Calculator

Tips: Enter the load on weld in Newtons, shear stress in Pascals, length of parallel fillet weld in meters, and tolerance percentage (default ±5%). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is the 1.414 factor in the formula?
A: The 1.414 (√2) factor accounts for the 45° throat dimension in fillet welds.

Q2: How do I determine the shear stress value?
A: Shear stress is typically 60% of the tensile strength of the weld material or base metal, whichever is weaker.

Q3: What's a typical tolerance for plate thickness?
A: ±5% is common, but this may vary based on manufacturing capabilities and design requirements.

Q4: Does this consider safety factors?
A: No, the calculated thickness is theoretical. Apply appropriate safety factors based on your design codes.

Q5: Can I use this for other weld types?
A: This formula is specific to parallel fillet welds. Other weld configurations require different calculations.

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