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Thickness of Plates given Total Load Carried by Plates in Compound Weld Calculator

Thickness of Plate Formula:

\[ t_{plate} = \frac{W}{1.414 \times \tau \times L_{parallel} + 0.707 \times \sigma_t \times L_{single}} \]

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1. What is Thickness of Plates in Compound Weld?

Definition: This calculator determines the required thickness of plates in a compound weld based on the total load carried and weld parameters.

Purpose: It helps engineers and welders design welded joints that can safely carry specified loads.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ t_{plate} = \frac{W}{1.414 \times \tau \times L_{parallel} + 0.707 \times \sigma_t \times L_{single}} \]

Where:

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

Explanation: The formula accounts for both shear and tensile stresses in the compound weld configuration.

3. Importance of Plate Thickness Calculation

Details: Proper thickness calculation ensures weld integrity, load-bearing capacity, and safety of the welded structure.

4. Using the Calculator

Tips: Enter the load, material stresses, weld lengths, and tolerance percentage. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is a compound weld?
A: A compound weld combines different types of welds (like parallel fillet and single lap) in one joint.

Q2: Why include tolerance?
A: Tolerance accounts for material variations and manufacturing imperfections (±5% is typical).

Q3: What are typical shear stress values?
A: For mild steel, shear stress is typically 0.6-0.8 times the tensile strength.

Q4: How do I determine weld lengths?
A: Weld lengths depend on joint design and load requirements - consult welding standards.

Q5: Can this be used for other materials?
A: Yes, but use appropriate material properties (stresses) for accurate results.

Thickness of Plates given Total Load Carried by Plates in Compound Weld Calculator© - All Rights Reserved 2025