A Study on Procedures of the Accelerated Life Testing for Hose Assemblies

Abstract:

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There are several types of life test method for hose assemblies. The two major tests used for hose assemblies are impulse test and burst test. And magnification adjustment of impulse pressure, heating of testing oil and repetitive motions of bending and straightening of testing hose are also performed for accelerating the life. According to the manufacture process of hose and swaging process of fitting, there is a difference in the life of hose assemblies from minimum 7 times to maximum 40 times during the life test in the same functioning condition. Like this, the life test of hose which has a wide scope of life distribution gives a problem that observation should take a long time to find out the existence of the bursting from the beginning of the test to the completion of bursting of hose assemblies. Therefore, this research proposes a process of concentrating on the defective section of hose assemblies and maximizing the life acceleration by giving ‘Knockdown stress’ to hose assemblies just until before the hose assemblies get out of order.

Info:

Periodical:

Key Engineering Materials (Volumes 297-300)

Edited by:

Young-Jin Kim, Dong-Ho Bae and Yun-Jae Kim

Pages:

1870-1875

DOI:

10.4028/www.scientific.net/KEM.297-300.1870

Citation:

Y.B. Lee et al., "A Study on Procedures of the Accelerated Life Testing for Hose Assemblies ", Key Engineering Materials, Vols. 297-300, pp. 1870-1875, 2005

Online since:

November 2005

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Price:

$35.00

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