<abstract xmlns="http://www.w3.org/1999/xhtml"><p>In the shipbuilding industry, the risk of brittle fracture of the structure is limited by using certified materials with specified impact strength, determined by the Charpy method (for a given design temperature) and by supervising the welding processes (technology qualification, production supervision, non-destructive testing). For off-shore constructions, classical shipbuilding requirements may not be sufficient. Therefore, the regulations used in the construction of offshore structures require CTOD tests for steel and welded joints with a thickness greater than 40 mm in the case of high strength steel and more than 50 mm in the case of other steels. Classification societies do not accept CTOD test results of samples with a thickness less than the material tested. For this reason, the problem of theoretical modeling of steel structure destruction process is a key issue, because laboratory tests for elements with high thickness (in the order of 100 mm and more) with a notch are expensive (large samples, difficulties in notching), and often create implementation difficulties due to required high load and range of recorded parameters. The publication will show results and conclusions from numerical modeling of elastic properties for steel typical for offshore applications.</p><p>Calculations were carried out at the Academic Computer Centre in Gdańsk.</p></abstract>

In the shipbuilding industry, the risk of brittle fracture of the structure is limited by using certified materials with specified impact strength, determined by the Charpy method (for a given design temperature) and by supervising the welding processes (technology qualification, production supervision, non-destructive testing). For off-shore constructions, classical shipbuilding requirements may not be sufficient. Therefore, the regulations used in the construction of offshore structures require CTOD tests for steel and welded joints with a thickness greater than 40 mm in the case of high strength steel and more than 50 mm in the case of other steels. Classification societies do not accept CTOD test results of samples with a thickness less than the material tested. For this reason, the problem of theoretical modeling of steel structure destruction process is a key issue, because laboratory tests for elements with high thickness (in the order of 100 mm and more) with a notch are expensive (large samples, difficulties in notching), and often create implementation difficulties due to required high load and range of recorded parameters. The publication will show results and conclusions from numerical modeling of elastic properties for steel typical for offshore applications.Calculations were carried out at the Academic Computer Centre in Gdańsk.

Numerical Model of Plastic Destruction of Thick Steel Structural Elements

Polish Maritime Research

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

{"article-title":"Numerical Model of Plastic Destruction of Thick Steel Structural Elements"}

In the shipbuilding industry, the risk of brittle fracture of the structure is limited by using certified materials with specified impact strength, determined...

Numerical Model of Plastic Destruction of Thick Steel Structural Elements

Publié en ligne: 07 juil. 2018

Pages: 78 - 84

DOI: https://doi.org/10.2478/pomr-2018-0057

Mots clés
impact strength, numerical modeling, steel structural elements

© 2018 Jakub Kowalski et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Numerical Model of Plastic Destruction of Thick Steel Structural Elements

Publié en ligne: 07 juil. 2018

Pages: 78 - 84

DOI: https://doi.org/10.2478/pomr-2018-0057

Mots clésimpact strength, numerical modeling, steel structural elements

© 2018 Jakub Kowalski et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Mots clés
impact strength, numerical modeling, steel structural elements