Fracture behaviour of large scale pressure vessels in the hydrotest

Rauno Rintamaa, Heikki Keinänen, Kari Törrönen, Heli Talja, Arja Saarenheimo, Kari Ikonen

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

Within the Nordic Countries a four-year research programme in the area of elastic-plastic fracture mechanics was initiated in 1985. This programme aims to assess the leak-before-break (LBB) criteria for pressure vessels and piping. The main experimental effort of the programme is to rupture large size pressure vessels, one having dimensions resembling those of a nuclear reactor pressure vessel, under internal pressure. Artificial flaws were made on the inner wall of the vessels. The dimensions of the flaws were defined by calculations so that the LBB condition was just anticipated during the test. For the time being two tests have been performed. The first test with a large pressure vessel was pressurized by water at 60°C, which was the lowest acceptable temperature for the hydrotest. In this paper experimental details including flaw preparation, instrumentation and material characterization are described. The fracture behaviour as well as experimental results of the tests are reported and compared to the analytical solutions of the analyses.
Original languageEnglish
Pages (from-to)265-291
JournalInternational Journal of Pressure Vessels and Piping
Volume34
Issue number1-5
DOIs
Publication statusPublished - 1988
MoE publication typeA1 Journal article-refereed

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Pressure vessels
Defects
Nuclear reactors
Fracture mechanics
Plastics
Water
Temperature

Cite this

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title = "Fracture behaviour of large scale pressure vessels in the hydrotest",
abstract = "Within the Nordic Countries a four-year research programme in the area of elastic-plastic fracture mechanics was initiated in 1985. This programme aims to assess the leak-before-break (LBB) criteria for pressure vessels and piping. The main experimental effort of the programme is to rupture large size pressure vessels, one having dimensions resembling those of a nuclear reactor pressure vessel, under internal pressure. Artificial flaws were made on the inner wall of the vessels. The dimensions of the flaws were defined by calculations so that the LBB condition was just anticipated during the test. For the time being two tests have been performed. The first test with a large pressure vessel was pressurized by water at 60°C, which was the lowest acceptable temperature for the hydrotest. In this paper experimental details including flaw preparation, instrumentation and material characterization are described. The fracture behaviour as well as experimental results of the tests are reported and compared to the analytical solutions of the analyses.",
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Fracture behaviour of large scale pressure vessels in the hydrotest. / Rintamaa, Rauno; Keinänen, Heikki; Törrönen, Kari; Talja, Heli; Saarenheimo, Arja; Ikonen, Kari.

In: International Journal of Pressure Vessels and Piping, Vol. 34, No. 1-5, 1988, p. 265-291.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Fracture behaviour of large scale pressure vessels in the hydrotest

AU - Rintamaa, Rauno

AU - Keinänen, Heikki

AU - Törrönen, Kari

AU - Talja, Heli

AU - Saarenheimo, Arja

AU - Ikonen, Kari

PY - 1988

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AB - Within the Nordic Countries a four-year research programme in the area of elastic-plastic fracture mechanics was initiated in 1985. This programme aims to assess the leak-before-break (LBB) criteria for pressure vessels and piping. The main experimental effort of the programme is to rupture large size pressure vessels, one having dimensions resembling those of a nuclear reactor pressure vessel, under internal pressure. Artificial flaws were made on the inner wall of the vessels. The dimensions of the flaws were defined by calculations so that the LBB condition was just anticipated during the test. For the time being two tests have been performed. The first test with a large pressure vessel was pressurized by water at 60°C, which was the lowest acceptable temperature for the hydrotest. In this paper experimental details including flaw preparation, instrumentation and material characterization are described. The fracture behaviour as well as experimental results of the tests are reported and compared to the analytical solutions of the analyses.

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