J032034 流体温度変動による配管熱疲労に関する研究 : 温度成層界面ゆらぎに対する円筒の熱応力応答に関する研究([J032-03]エネルギープラント安全に向けた構造/熱流体/材料の達成問題(3))

Translated title of the contribution: J032034 Thermal fatigue of pipes induced by fluid temperature : Study on the thermal-stress response of cylinder to fluctuations of thermal stratification

水谷 崇人, フォウントヴィエス ダビッド, 鈴木 正昭, 笠原 直人, Naoto KASAHARA

Research output: Contribution to journalMisc

Abstract

The temperature oscillation produced by thermal stratification phenomenon induces thermal fatigue damages on structures of nuclear components, which should be prevented. To evaluate thermal fatigue, the frequency response function was developed. However, this theoretical method does not take particular effects of thermal stratification oscillation into account. To clarify these effects, finite element simulations were conducted with two fluid temperature models. Based on mechanisms of the effects, the frequency response function was improved. Agreement with the results of the finite element simulations confirmed the proposed function.
Translated title of the contributionJ032034 Thermal fatigue of pipes induced by fluid temperature : Study on the thermal-stress response of cylinder to fluctuations of thermal stratification
Original languageJapanese
Pages (from-to)"J032034 - 1"-"J032034-5"
JournalMechanical Engineering Congress, Japan
Volume2013
StatePublished - 8 Sep 2013

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