Volume 6: Materials and Fabrication 2005
DOI: 10.1115/pvp2005-71364
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SMILE: Validation of the Warm-Pre-Stress Effect With a Cylindrical Thick-Walled Specimen

Abstract: The Reactor Pressure Vessel (RPV) is an essential component, which is liable to limit the lifetime duration of PWR plants. The assessment of defects in RPV subjected to pressurized thermal shock (PTS) transients made at an European level generally does not necessarily consider the beneficial effect of the load history (Warm Pre-stress, WPS). The SMILE project — Structural Margin Improvements in aged embrittled RPV with Load history Effects — aims to give sufficient elements to demonstrate, to model and to vali… Show more

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Cited by 2 publications
(3 citation statements)
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“…More recently, studies have shown the relevance of WPS effect on complex geometries [8,9] and biaxial loading conditions [10], which have been shown to better mimic the mechanical state encountered by a subcladding defect in RPV. The possibility of a positive stress intensity factor variation as the temperature decreases has also been assessed [11,12].…”
Section: Introductionmentioning
confidence: 98%
“…More recently, studies have shown the relevance of WPS effect on complex geometries [8,9] and biaxial loading conditions [10], which have been shown to better mimic the mechanical state encountered by a subcladding defect in RPV. The possibility of a positive stress intensity factor variation as the temperature decreases has also been assessed [11,12].…”
Section: Introductionmentioning
confidence: 98%
“…In order to demonstrate the WPS-effect on a 'representative' component under thermal shock conditions (PTS), a model vessel in the form of a cylinder containing a circumferential shallow crack has been tested by MPA Stuttgart under combined mechanical and thermal loading. Full information about this experiment can be found in papers [4] [5]. The material used for the validation test is the WPS3 steel (17 MoV 8 4 mod.…”
Section: Description Of the Wps Validation Testmentioning
confidence: 99%
“…The first step of the analysis is the evaluation of the temperature field inside the specimen during the experiment and its comparison with experimental data coming from thermocouples located at various locations in the cylinder [4] [5]. The comparison between numerical results and experimental values is shown in Fig.…”
Section: Thermal Analysismentioning
confidence: 99%