MD-8 Spring design
Spring Stresses Torsional shear stress Peak stress is more because of the curvature effect 3 W m S πD 8 F D S = Eq 8.8 August 15, 2007 29 Coil shear stress August 15, 2007 30 Wahl factor A stress factor is developed by Wahl to account for the the curvature. A plot of this factor against the spring index, C is shown in Fig. 8.8.
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