A helical compression spring was subjected to a load fluctuating between 100 and 250 N. Fatigue properties
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A helical compression spring was subjected to a load fluctuating between 100 and 250 N. Fatigue properties of the spring wire corresponded to the curve for shotpeened wire given in Figure 12.16. The spring failed in service after about 10^5 cycles. A replacement spring was found that was identical in all respects except that its free length was slightly shorter. To correct for this, a technician stretched the spring slightly to increase its free length to exactly that of the original spring. Show, by means of a tmax?tmin plot, whether you would expect the life of the replacement spring to be the same as, less than, or greater than that of the original.
Related Book For
Shigleys Mechanical Engineering Design
ISBN: 978-1121345317
9th edition
Authors: Richard G. Budynas, J. Keith Nisbett
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