PSI - Issue 14

Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2018) 000 – 000 Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2018) 000 – 000

www.elsevier.com/locate/procedia

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 14 (2019) 964–977

2nd International Conference on Structural Integrity and Exhibition 2018 On the problem of quantitative service life assessment for high strength steel welded structures under the effect of corrosion medium Ilyin A.V. a *, Filin V.Yu. a a NRC Kurchatov institute - CRISM Prometey, Saint-Petersburg, 191015, Russia Abstract Nowadays there are some standards and approved procedures for fatigue strength estimation for welded structures subjected to high cycle loading where the strength of material is not actually taken into account. However for structures made of high-strength steels a situation is more specific due to a couple of aspects. First, high-strength steels are applied when the design stress is increased, that translates the analysis from the high-cycle to the low cycle fatigue having its own specificity. Second, the trend of low-alloy steels to develop stress corrosion cracking mechanisms with their strength increase is widely known. In view of the above, there is a necessity of more detailed determination of the limiting states of a structure taking into account the load frequency. Links of both factors with the design features of welded joints and their welding and assembling technology are observed. A procedure for fatigue durability prediction of high-strength welded joints based on numerical simulation of fatigue process is presented. 2nd International Conference on Structural Integrity and Exhibition 2018 On the probl m of quantitative ervic life assessment for high strength steel welded structures under the effect of corrosion medium Ilyin A.V. a *, Filin V.Yu. a a NRC Kurchatov institute - CRISM Prometey, Saint-Petersburg, 191015, Russia Abstract Nowadays ther are some standards and approved procedures for fatigue strength estimation for welded structures ubjected to h gh cycle loa ing whe the strength of material is not actually taken into account. However for structures made of high-strength steels a situation is more specific due to a coupl of aspects. First, high-strength st els are appl ed when the design str ss is increased, that translates the analysis from th high-cycle to th low cycle fatigue having its own pecificity. Se ond, the trend f low-alloy steels to d velop stre s corrosion cracking m chanisms with their strength increase is widely known. In view of the above, there is a necessity of m r etailed determination of the limi ng states of a structure taking into account the load frequency. Links of both fact rs with th design features of welded joints and their welding and assembling technology are observed. A procedure for fatigue durability prediction of high-strength welded joints based on numerical simulation of fatigue process is presented. © 2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0/) Selection and peer-review under responsibility of Peer-review under responsibility of the SICE 2018 organizers. © 2018 Ilyin A.V., Filin V.Yu. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0/) Selection and peer-review under responsibility of Peer-review under responsibility of the SICE 2018 organizers. © 2018 Ilyin A.V., Fil n V.Yu. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0/) S lection and p er-review under responsibil ty of Peer-review u der responsibility of the SICE 2018 organizers. Keywords: fatigue strength; welded joints; corrosion; stress concentration; residual stress.

Keywords: fatigue strength; welded joints; corrosion; stress concentration; residual stress.

* Corresponding author. Tel.: +7-812-274-18-22; fax: +7-812-710-37-56. E-mail address: mail@crism.ru

2452-3216 © 2018 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0/) Selection and peer-review under responsibility of Peer-review under responsibility of the SICE 2018 organizers. 2452-3216 © 2018 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0/) Selection and peer-review under responsibility of Peer-review under responsibility of the SICE 2018 organizers. * Corresponding author. Tel.: +7-812-274-18-22; fax: +7-812-710-37-56. E mail address: mail@crism.r

2452-3216  2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0/) Selection and peer-review under responsibility of Peer-review under responsibility of the SICE 2018 organizers. 10.1016/j.prostr.2019.07.078