mean stress

mean stress

[′mēn ′stres]
(mechanics)
The algebraic mean of the maximum and minimum values of a periodically varying stress.
References in periodicals archive ?
13] investigated the uniaxial ratcheting behavior of polytetrafluoroethylene (PTFE) with different loading rate, mean stress and stress amplitude at ambient and elevated temperatures, respectively.
When a cycle fatigue load is applied, the residual stress does not affect the stress amplitude, but it gives a shift to the mean stress.
About a third of respondents (31%) reported tension-type headache, with a mean of 2 headache days per month and a mean stress level of 52.
6% improvements were found in the mean stress of the femur, mean micromotion of the interface and wear index of insert, respectively.
Private sector managers reported an overall mean stress level of 3.
The control group's mean stress score increased, and there was a significant difference in mean stress levels between the two groups after controlling for pre-experimental values.
com)-- This week is Thanksgiving 2011 - a time of reflection and gratitude, and a time to enjoy life, but for many it would also mean stress.
To the important loading case of the machine components can be included the cyclic load, when mechanical stress changes cyclically around the mean stress with some amplitude.
12 /PRNewswire/ -- While most parents think of back-to-school as an exciting time marked by new backpacks, school supplies and outfits, it can also mean stress and anxiety for many children.
Kids brought up in a harsh environment produce a lot of cortisol, a particularly mean stress hormone that interferes with thought, decision-making and responsible behaviour.