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Length of Fillet Leg from Transverse Shrinkage in T-Joints Calculator

Fillet Leg Length Formula:

\[ ht = \frac{s \times tb}{1.02} \]

1. What is Length of Fillet Leg from Transverse Shrinkage?

Definition: This calculator estimates the length of fillet leg in T-joints based on transverse shrinkage and plate thickness.

Purpose: It helps welding professionals determine proper fillet dimensions to account for shrinkage effects in T-joint configurations.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ ht = \frac{s \times tb}{1.02} \]

Where:

  • \( ht \) — Length of fillet leg (meters)
  • \( s \) — Transverse shrinkage (meters)
  • \( tb \) — Thickness of bottom plate (meters)

Explanation: The transverse shrinkage multiplied by plate thickness gives the base value, which is then divided by the empirical factor 1.02.

3. Importance of Fillet Leg Calculation

Details: Proper fillet leg length ensures joint strength, compensates for shrinkage effects, and maintains dimensional accuracy in welded structures.

4. Using the Calculator

Tips: Enter transverse shrinkage (typically 0.001-0.010m) and plate thickness. Both values must be > 0. Results account for ±5% variation.

5. Frequently Asked Questions (FAQ)

Q1: Why is there a ±5% variation?
A: The 5% accounts for material inconsistencies, measurement tolerances, and welding process variations.

Q2: What's a typical transverse shrinkage value?
A: For carbon steel, transverse shrinkage typically ranges from 0.1% to 1% of joint length (0.001-0.010m per meter).

Q3: When would I need to adjust the calculation?
A: For different materials (aluminum, stainless steel) or special joint preparations, consult welding engineering references.

Q4: How does plate thickness affect the result?
A: Thicker plates generally require proportionally longer fillet legs to accommodate greater shrinkage forces.

Q5: Does this include safety factors?
A: No, the calculation provides theoretical values. Apply appropriate safety factors based on application requirements.

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