Shear Stress Measures
Practical example for calculating overall springs.
How to measure de shear stresses
The maximum and minimum shear stress t on the inside surface of the spring coils are proportional to the spring forces Fmax and Fmin
where D is the mean diameter of the spring (measured from the centers of the wire cross-sections), W is theWahl correction factor to account for the spring curvature stress, and C is the spring index (essentially an aspect ratio of the spring cross-section),
The shear stress in the spring alternates between its maximum and minimum values as the spring cycles. We therefore can define the average, or mean stress in the spring tmean, and the alternating stress in the spring,talt,
