1. What is Bending Moment in Spiral Spring?

Bending moment in spiral spring is the reaction induced in a spiral spring when an external force or moment is applied to the element, causing the element to bend. It represents the internal moment that resists the bending deformation.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( M \) — Bending moment in spiral spring (N·m)
• \( \sigma_b \) — Bending stress in spiral spring (Pa)
• \( b \) — Width of strip of spiral spring (m)
• \( t \) — Thickness of strip of spring (m)

Explanation: The formula calculates the bending moment based on the bending stress and geometric properties of the spring strip.

3. Importance of Bending Moment Calculation

Details: Accurate bending moment calculation is crucial for designing spiral springs that can withstand applied loads without failure, ensuring proper spring performance and longevity.

4. Using the Calculator

Tips: Enter bending stress in Pascals, width and thickness in meters. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is bending stress in spiral spring?
A: Bending stress is the normal stress that is induced at a point in a spring subjected to loads that cause it to bend.

Q2: How does strip thickness affect bending moment?
A: Bending moment increases with the square of the thickness, making thickness the most influential geometric parameter.

Q3: What are typical units for these measurements?
A: Bending stress in Pascals (Pa), width and thickness in meters (m), and bending moment in Newton-meters (N·m).

Q4: When is this calculation most important?
A: This calculation is critical during spring design and analysis to ensure the spring can handle expected loads without excessive deformation.

Q5: Are there limitations to this formula?
A: This formula assumes linear elastic material behavior and may not account for all complex stress distributions in practical spring applications.