1. What is Length of Weld Given Tensile Stress Calculator?

Definition: This calculator determines the required length of a transverse fillet weld based on the applied load, weld leg size, and allowable tensile stress.

Purpose: It helps welding engineers and designers ensure weld joints have sufficient length to withstand applied loads safely.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( L \) — Length of weld (meters)
• \( P_t \) — Load on transverse fillet weld (Newtons)
• \( h_l \) — Leg of weld (meters)
• \( \sigma_t \) — Tensile stress in transverse fillet weld (Pascals)

Explanation: The formula calculates the required weld length by dividing the applied load by the product of weld throat area (0.707 × leg) and allowable stress.

3. Importance of Weld Length Calculation

Details: Proper weld length calculation ensures joint strength, prevents weld failure, and meets safety requirements while optimizing material usage.

4. Using the Calculator

Tips: Enter the load in Newtons, weld leg size in meters (typical values 0.005-0.025m), and allowable tensile stress in Pascals. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why is the 0.707 factor used?
A: 0.707 accounts for the throat area of a 45° fillet weld (cos45° = 0.707).

Q2: What's a typical weld leg size?
A: Common sizes range from 5-25mm (0.005-0.025m) depending on material thickness and load requirements.

Q3: How is tensile stress determined?
A: It's typically a fraction (often 0.6) of the weld material's yield strength for safety.

Q4: Does this account for dynamic loads?
A: No, this is for static loading. For dynamic loads, use reduced allowable stress values.

Q5: What if my weld is not 45°?
A: The formula changes for different angles. This calculator assumes standard 45° fillet welds.

Length of Weld Given Tensile Stress in Transverse Fillet Weld Calculator© - All Rights Reserved 2025