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http://dx.doi.org/10.3795/KSME-A.2011.35.3.325

A Study on the Promotion Time in Environmental Temperature Test  

Han, Chul-Ho (Dept. of Mechanical Engineering, Kumoh Nat'l Inst. Technology(KIT))
Kim, Kyoung-Hoon (Dept. of Mechanical Engineering, Kumoh Nat'l Inst. Technology(KIT))
Kim, Hyoung-Eui (Reliability Assesment Center, Korea Inst. of Machinery and Materials(KIMM))
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.35, no.3, 2011 , pp. 325-331 More about this Journal
Abstract
A new method to predict the proper promotion time on the near-step-temperature test profile when heating or cooling the test-piece in a test chamber to the test temperature for environmental tests has been proposed by using the lumped analysis. For a given test condition the analysis shows the existence of a promotion time that reduces the testing time and saves energy. The theoretical results are in reasonably good agreements with experimental results for steel specimens. The suggested promotion time is approximately proportional to the mass/surface area of the test-piece for a given material.
Keywords
Environmental Test; High & Low Temperature Test; Lumped Analysis; Temperature Promotion Time;
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