In this article we present a new and effective method to Estimate the static fatigue age for
springs, when it works by static load or static strain for a long time at deferent
temperature, this case is very important because the spring is a battery
for force and it must
save allow value of the force.
At the first we present a theory study for “creep and relaxation “and how we can accelerate
the test to get the results, then we suggest method to accelerate the test to know when the
spring retch to the minimum allowable value of the force at work temperature degree, this
method depend on tests at samples at deferent temperature degrees, higher than work and
storage temperature, and then use the results to estimate the static fatigue age for springs at
real storage and work temperature.
