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http://dx.doi.org/10.5293/kfma.2016.19.3.053

Study on the Autofrettage Pressure for SCBA Type3 Cylinder  

Kim, Kwang Seok (The Institue of Gas Safety R&D, Korea Gas Safety Cooperation)
Lee, Kyomin (LOTTE Chemical Research Institute)
Lee, Jaehun (The Institue of Gas Safety R&D, Korea Gas Safety Cooperation)
Cho, Seongmin (The Institue of Gas Safety R&D, Korea Gas Safety Cooperation)
Publication Information
The KSFM Journal of Fluid Machinery / v.19, no.3, 2016 , pp. 53-56 More about this Journal
Abstract
In this study, experiments and finite element method analysis were used to determine the autofrettage pressure that is optimal and then maximizes the cycling life of Type3 composite cylinders used in self-contained breathing apparatus. For both approaches, the cylinders were pressurized at 100, 110, ${\ldots}$, 290 % of the test pressure, respectively. The stresses were computed by the FEM analysis; while the strains of cylinders were recorded and the failure modes were monitored during the cycling test. As a result, from the good agreements between the simulations and experiments, it was concluded that at least 70 % of the test pressure should be applied as the autofrettage pressure in order to takes visible effect on the cycling life, and 160 % of the test pressure induces the maximum cycling life and the desired failure mode.
Keywords
Type3 Cylinder; Autofrettage Pressure; Cycling Life; Failure Mode;
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Times Cited By KSCI : 1  (Citation Analysis)
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