Length of Bottom Weld given Axial Load on Angle Calculator

Length of Bottom Weld Formula:

\[ L2 = \frac{P_{angle}}{s} - L_{top\ weld} \]

Axial Load on Angle:

Resistance of Weld:

N/unit length

Length of Top Weld:

Tolerance:

Length of Bottom Weld (m):

Tolerance Range (m):

1. What is Length of Bottom Weld Calculator?

Definition: This calculator determines the required length of the bottom weld when given the axial load on an angle, weld resistance, and top weld length.

Purpose: It helps welding engineers and fabricators design proper weld lengths for angle connections under axial loads.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ L2 = \frac{P_{angle}}{s} - L_{top\ weld} \]

Where:

\( L2 \) — Length of bottom weld (meters)
\( P_{angle} \) — Axial load on angle (Newtons)
\( s \) — Resistance of weld per unit length (N/unit length)
\( L_{top\ weld} \) — Length of top weld (meters)

Explanation: The total required weld length is calculated by dividing the load by weld resistance, then subtracting the top weld length to get the bottom weld length.

3. Importance of Weld Length Calculation

Details: Proper weld length calculation ensures structural integrity, load-bearing capacity, and safety of welded connections.

4. Using the Calculator

Tips: Enter the axial load in Newtons, weld resistance (default 50 N/unit length), top weld length (default 0.004 m), and tolerance percentage (default ±5%). All values must be ≥ 0.

5. Frequently Asked Questions (FAQ)

Q1: What is typical weld resistance value?
A: Common values range from 50-100 N/unit length depending on material and weld type, but always consult engineering specifications.

Q2: Why include a tolerance percentage?
A: Tolerance accounts for variations in material properties, fabrication accuracy, and safety factors (±5% is common).

Q3: What if my top weld length is zero?
A: If there's no top weld, the entire required weld length will be assigned to the bottom weld.

Q4: How do I determine axial load on an angle?
A: Calculate from structural analysis or use load tables based on application and design requirements.

Q5: Does this account for dynamic or fatigue loads?
A: No, this is for static axial loads only. For dynamic loading, additional factors must be considered.