Load Carried by Parallel Fillet Weld Calculator

Load on Weld Formula:

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

Load on Weld:

1. What is Load Carried by Parallel Fillet Weld?

Definition: This calculator estimates the load capacity of a parallel fillet weld based on shear stress, weld length, and plate thickness.

Purpose: It helps engineers and welders determine the maximum load a parallel fillet weld can safely carry.

2. How Does the Calculator Work?

The calculator uses the formula:

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

Where:

\( W \) — Load on weld (N)
\( \tau \) — Shear stress (Pa)
\( L_{\text{parallel}} \) — Length of parallel fillet weld (m)
\( t_{\text{plate}} \) — Thickness of plate (m)

Explanation: The formula calculates the load capacity considering the weld geometry and material properties.

3. Importance of Weld Load Calculation

Details: Proper weld load estimation ensures structural integrity, safety, and compliance with engineering standards.

4. Using the Calculator

Tips: Enter shear stress (%), weld length (%), and plate thickness (%). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why is the factor 1.414 used in the formula?
A: This factor accounts for the 45° angle of the fillet weld and converts the leg length to throat thickness.

Q2: What's a typical shear stress value for welds?
A: Shear stress values vary by material, but common structural steel welds might have allowable shear stress around 60-80% of the base metal yield strength.

Q3: How does weld length affect load capacity?
A: Load capacity is directly proportional to weld length - doubling the length doubles the load capacity.

Q4: Why is plate thickness important?
A: Thicker plates typically require larger welds to develop full strength, affecting the load capacity.

Q5: Does this include safety factors?
A: No, the calculated value is theoretical capacity. Apply appropriate safety factors based on your design codes.