Shear Stress In Crankweb Of Centre Crankshaft For Max Torque Given Polar Section Modulus Calculator

Formula Used:

\[ \text{Shear Stress in Crankweb} = \frac{\text{Torsional Moment in Crankweb}}{\text{Polar Section Modulus of Crankweb}} \]

Shear Stress in Crankweb:

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1. What is Shear Stress in Crankweb?

Shear stress in crankweb is the amount of shear stress (causes deformation by slippage along plane parallel to the imposed stress) in the crankweb of a center crankshaft under maximum torque conditions.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ \text{Shear Stress} = \frac{\text{Torsional Moment}}{\text{Polar Section Modulus}} \]

Where:

Shear Stress - Measured in Pascal (Pa)
Torsional Moment - Measured in Newton Meter (N·m)
Polar Section Modulus - Measured in Cubic Meter (m³)

Explanation: This formula calculates the shear stress in the crankweb by dividing the torsional moment by the polar section modulus of the crankweb section.

3. Importance of Shear Stress Calculation

Details: Calculating shear stress in crankweb is crucial for designing and analyzing center crankshafts to ensure they can withstand maximum torque conditions without failure. It helps in determining the structural integrity and safety of the crankshaft under operational loads.

4. Using the Calculator

Tips: Enter the torsional moment in N·m and polar section modulus in m³. Both values must be positive numbers greater than zero for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: What is torsional moment in crankweb?
A: Torsional moment is the twisting force applied to the crankweb that causes it to rotate about its axis.

Q2: What is polar section modulus?
A: Polar section modulus is the ratio of polar moment of inertia about the neutral axis to the distance of extreme fiber from the neutral axis.

Q3: Why is shear stress important in crankweb design?
A: Shear stress calculation ensures that the crankweb can withstand the maximum torque without experiencing shear failure or excessive deformation.

Q4: What units should be used for input values?
A: Torsional moment should be in Newton meters (N·m) and polar section modulus should be in cubic meters (m³).

Q5: How accurate is this calculation?
A: The calculation provides theoretical shear stress values. Actual stress may vary due to material properties, manufacturing tolerances, and other factors.