Formula Used:
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Maximum Compressive Stress in Crank Web is stress in Crank Web as a result of compressive stress by radial thrust on connecting rod, & bending stress by tangential & radial components of thrust force.
The calculator uses the formula:
Where:
Explanation: The formula calculates the total maximum compressive stress by summing up the direct compressive stress and bending stresses caused by both radial and tangential force components.
Details: Accurate calculation of maximum compressive stress is crucial for designing and analyzing crankshafts, ensuring structural integrity, and preventing mechanical failures under maximum torque conditions.
Tips: Enter all stress values in Pascal units. Ensure values are non-negative and represent valid stress measurements from engineering calculations or measurements.
Q1: What is the significance of maximum compressive stress in crankweb design?
A: It helps engineers determine if the crankshaft can withstand the combined stresses during maximum torque operation without failure.
Q2: How are the individual stress components (\(\sigma_c\), \(\sigma_r\), \(\sigma_t\)) typically calculated?
A: These are derived from force analysis, material properties, and geometric parameters of the crankshaft using standard mechanical engineering formulas.
Q3: What are typical acceptable values for maximum compressive stress?
A: Acceptable values depend on the material properties of the crankshaft, with safety factors applied to ensure the stress remains below the material's yield strength.
Q4: Are there limitations to this calculation method?
A: This simplified approach assumes linear superposition of stresses and may not account for complex stress concentrations or dynamic effects in all operating conditions.
Q5: Should this calculation be used for final design validation?
A: While useful for preliminary design, final validation should include finite element analysis and physical testing to account for real-world conditions and stress concentrations.