Resistance Offered By Weld Per Unit Length Given Moment Of Bottom Weld About Gravity Axis Calculator

Formula Used:

\[ \text{Resistance of weld per unit length} = \frac{\text{Moment of Inertia of Weld}}{\text{Length of Bottom Weld} \times \text{Distance of Bottom Weld from Gravity Axis}} \] \[ s = \frac{I}{L_2 \times b} \]

Moment of Inertia of Weld (I):

kg·m²

Length of Bottom Weld (L₂):

Distance of Bottom Weld from Gravity Axis (b):

Resistance of Weld Per Unit Length (s):

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1. What is Resistance of Weld Per Unit Length?

Resistance of weld per unit length is a function of the resistivity and surface condition of the parent material. It represents the resistance offered by the weld per unit length when subjected to mechanical loads.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ s = \frac{I}{L_2 \times b} \]

Where:

\( s \) — Resistance of weld per unit length (N)
\( I \) — Moment of Inertia of Weld (kg·m²)
\( L_2 \) — Length of Bottom Weld (m)
\( b \) — Distance of Bottom Weld from Gravity Axis (m)

Explanation: This formula calculates the resistance per unit length of weld based on the moment of inertia and geometric properties of the weld configuration.

3. Importance of Weld Resistance Calculation

Details: Accurate calculation of weld resistance is crucial for structural integrity assessment, ensuring welded joints can withstand applied loads without failure, and for proper design of welded structures.

4. Using the Calculator

Tips: Enter moment of inertia in kg·m², length of bottom weld in meters, and distance from gravity axis in meters. All values must be positive numbers greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: What factors affect weld resistance?
A: Weld resistance is affected by material properties, weld geometry, surface conditions, and the quality of the weld joint.

Q2: How is moment of inertia of weld determined?
A: Moment of inertia is calculated based on the cross-sectional geometry and distribution of the weld material relative to the axis of rotation.

Q3: What are typical values for weld resistance?
A: Weld resistance values vary significantly depending on materials, weld type, and loading conditions. Consult engineering standards for specific applications.

Q4: Are there limitations to this calculation method?
A: This method provides an estimate and should be verified with experimental testing for critical applications. It assumes uniform material properties and ideal weld conditions.

Q5: How does weld length affect resistance?
A: Longer weld lengths generally provide higher total resistance, but resistance per unit length helps in comparing different weld configurations and optimizing design.