accelerated test

accelerated test

[ak′sel·ər‚ā·dəd ′test]
(electricity)
A test of the serviceability of an electric cable in use for some time by applying twice the voltage normally carried.
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High levels of flexibility and control contribute to an accelerated test case creation and analysis process.
For instance, if the chemical system being studied is a system operating at 100[degrees]C for 1 year (365 days), by using the generalization from Arrhenius, an accelerated test could be run at 150[degrees]C for 11.4 days to achieve similar chemical reactivity, if reaction mechanisms are not altered by the elevated temperature.
In the natural accelerated test, panels are mounted facing away from the sun and towards a bank of mirrors.
The Turkey's roads fatigue characteristic effect on the vehicle was determined and simulation of MP values has been performed by designing accelerated test tracks for reliability and fatigue testing around the producers [4,5].
Finally, data from screw accelerated test bench are used to inspect the effectiveness of the proposed method.
There are three main methods to evaluate the aging properties of coated fabrics, including natural exposure test, field aging test, and artificial accelerated test. The natural exposure test is a very effective method, because the test condition is very close to natural environment.
[6.] Meeker, W.Q., Escobar, L.A., A review of accelerated test models, Statistical Science, 2006, 21, 552-577.
The assemblies are put in a salt spray chamber at 35[degrees]C with 5% NaCl water according to ASTM B117-09, which is an accelerated test to stimulate the effects of a severe marine atmosphere on exposed surfaces.
Gloss measurement, EDX analysis, FTIR spectroscopy and SEM micrographs, all revealed high degradation in the surface characteristics of the polyurethane coating applied on EGMS after natural exposure testing as compared to accelerated test. This was more likely due to the presence of several corrosive pollutants in coastal environment, emerging from windblown spray droplets, marine fog and industrial and automobiles exhaust while these environmental detrimental factors are absent in accelerated test.
Malhotra and Zoldners [7] after a detailed research study concluded that the accelerated test can predict the 28 day strength probably as accurately as the standard 7 day test.
This accelerated test demonstrated a life expectancy in excess of 50 years at 10ppm.
Therefore, it is important for engineers to understand the behavior of a polymer in its operating environment in order to ensure that the accelerated test program is applicable.

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