Life prediction of a steam piping by Small Punch and uniaxial creep testing

Autor: Juhani Rantala

Publikováno v: Rantala, J 2019, Life prediction of a steam piping by Small Punch and uniaxial creep testing . in Baltica XI : International Conference on Life Management and Maintenance for Power Plants . VTT Technical Research Centre of Finland, Baltica XI 2019, Helsinki, Finland, 11/06/19 .
VTT Technical Research Centre of Finland-PURE

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::3f2acfa7e6f5abe6312303a07575422e
https://cris.vtt.fi/en/publications/7bb09b95-db6e-4b0f-bac9-70ba1003e202

Creep analyses of a steam pipe system

Autor: Jan Storesund, Kristin Steingrimsdottir, Juhani Rantala, Tobias Bolinder

Publikováno v: Storesund, J, Steingrimsdottir, K, Rantala, J & Bolinder, T 2016, Creep analyses of a steam pipe system . in P Auerkari (ed.), Baltica X : International Conference on Life Management and Maintenance for Power Plants . VTT Technical Research Centre of Finland, Espoo, VTT Technology, vol. 261, BALTICA X-International Conference on Life Management and Maintenance for Power Plants, Helsinki-Stockholm, Finland, 7/06/16 . < https://publications.vtt.fi/pdf/technology/2016/T261.pdf >
VTT Technical Research Centre of Finland-PURE

Elastic pipe stress analyses are frequently performed to check that the stresses in pipe systems are allowed. For operation in the creep range such analyses may describe the stress distribution in the beginning but not after creep relaxation starts t

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https://cris.vtt.fi/en/publications/90413c34-94f1-4710-88c5-7afc5f6b3d7f

Creep damage and long term life modelling of an X20 steam line component

Autor: Reino Nikkarila, Stefan Holmström, Jorma Salonen, Pertti Auerkari, Juhani Rantala, Anssi Laukkanen

Publikováno v: Auerkari, P, Salonen, J, Holmström, S, Laukkanen, A, Rantala, J & Nikkarila, R 2013, ' Creep damage and long term life modelling of an X20 steam line component ', Engineering Failure Analysis, vol. 35, pp. 508-515 . https://doi.org/10.1016/j.engfailanal.2013.05.008

Hot steam lines operate at high temperatures and are designed against creep. In service they will consume the creep life at the highest rate in locations with the most adverse combination of material strength (weakness) and high stress (e.g. system l

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https://cris.vtt.fi/en/publications/681a38a4-d07d-44ad-8df6-9e2eef0b7c91

Creep strain, damage and life prediction for welded 0.5CMV steel

Autor: Juhani Rantala, Pertti Auerkari, Stefan Holmström, Jorma Salonen, Anssi Laukkanen

Publikováno v: Rantala, J, Auerkari, P, Holmström, S, Salonen, J & Laukkanen, A 2010, Creep strain, damage and life prediction for welded 0.5CMV steel . in Baltica VIII : Life Management and Maintenance for Power Plants . vol. 2, VTT Technical Research Centre of Finland, Espoo, VTT Symposium, no. 265, pp. 176-192, BALTICA VIII-International Conference on Life Management and Maintenance for Power Plants, Helsinki-Stockholm, Finland, 18/05/10 . < https://publications.vtt.fi/pdf/symposiums/2011/S265.pdf >
VTT Technical Research Centre of Finland-PURE

Creep damage as cavitation and cracking has historically occurred somewhat earlier in the inspections of steam lines made of 0.5CMV steel, when compared to other low alloy steels. The difference has been attributed to modest creep ductility of 0.5CMV

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https://cris.vtt.fi/en/publications/5131a030-5dcd-4768-8cf1-fa4d8a1a7dcf

Modeling and Verification of Creep Strain and Exhaustion in a Welded Steam Mixer

Autor: Kari Kolari, Anssi Laukkanen, Olli Lehtinen, Stefan Holmström, Juhani Rantala, Heikki Keinänen

Publikováno v: Holmström, S, Laukkanen, A, Rantala, J, Kolari, K, Keinänen, H & Lehtinen, O 2008, Modelling and verification of creep strain and exhaustion in a welded steam mixer . in Proceedings of the ASME 2008 Pressure Vessels & Piping Conference, PVP 2008 . vol. 7, American Society of Mechanical Engineers (ASME), New York, NY, pp. 505-510, ASME Pressure Vessels and Piping Conference, PVP 2008, Chicago, Illinois, United States, 27/07/08 . https://doi.org/10.1115/PVP2008-61028
Holmström, S, Rantala, J, Laukkanen, A, Kolari, K, Keinänen, H & Lehtinen, O 2009, ' Modeling and verification of creep strain and exhaustion in a welded steam mixer ', Journal of Pressure Vessel Technology, vol. 131, no. 6, 061405 . https://doi.org/10.1115/1.4000201

Structures operating in the creep regime will consume their creep life at a greater rate in locations where the stress state is aggravated by triaxiality constraints. Many structures, such as the welded steam mixer studied here, also have multiple ma

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d50cd81ba8bef1bc23f551ce6c16de74
https://doi.org/10.1115/1.4000201