Synthesis of the experimental work for the design rules improvement

Davide Bernardi, Jarir Aktaa, Martine Blat-Yrieix, Matthias Bruchhausen, Carlo Cristalli, Francesco Dolci, Stefan Holmström, Hyeong-Yeon Lee, Philippe Matheron, Karf-Fredrik Nilsson, Rami Pohja, W. Vincent, K. Zhang

Research output: Book/ReportReportProfessional

Abstract

This report describes the experimental work carried out by the various partners within the MATTER Task 7.1 in support to the improvement of the design rules, especially for 9%Cr ferritic-martensitic steel (P91). The tests performed are aimed at evaluating the extent to which component design rules written for materials with a greater ductility and which have a hardening behaviour under cyclic loading (for example austenitic stainless steels), are applicable to P91 material which instead is typically characterized by cyclic softening. According to the MATTER DoW (Description of Work) document, these tests include ratcheting validation tests, low cycle fatigue (LCF) tests, creep-fatigue and relaxation-fatigue tests, creep-crack growth (CCG) and fatigue-crack growth (FCG) tests, tensile tests on aged P91 as well as pure creep tests including also tests in support to the definition of the negligible creep domain. Specific objective of the work is the creation of an experimental dataset that will be used in other MATTER Tasks (T4.2 and T4.3) as the basis to improve ratcheting and creep-fatigue rules in European Codes, in particular with a focus on the efficiency diagram method and the creep-fatigue interaction diagram in RCC-MRx.
Original languageEnglish
Number of pages153
Publication statusPublished - 2015
MoE publication typeD4 Published development or research report or study

Fingerprint

Creep
Fatigue of materials
Martensitic steel
Ferritic steel
Austenitic stainless steel
Fatigue crack propagation
Ductility
Hardening
Crack propagation

Keywords

  • P91 steel
  • mechanical HT tests
  • design codes

Cite this

Bernardi, D., Aktaa, J., Blat-Yrieix, M., Bruchhausen, M., Cristalli, C., Dolci, F., ... Zhang, K. (2015). Synthesis of the experimental work for the design rules improvement.
Bernardi, Davide ; Aktaa, Jarir ; Blat-Yrieix, Martine ; Bruchhausen, Matthias ; Cristalli, Carlo ; Dolci, Francesco ; Holmström, Stefan ; Lee, Hyeong-Yeon ; Matheron, Philippe ; Nilsson, Karf-Fredrik ; Pohja, Rami ; Vincent, W. ; Zhang, K. / Synthesis of the experimental work for the design rules improvement. 2015. 153 p.
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Bernardi, D, Aktaa, J, Blat-Yrieix, M, Bruchhausen, M, Cristalli, C, Dolci, F, Holmström, S, Lee, H-Y, Matheron, P, Nilsson, K-F, Pohja, R, Vincent, W & Zhang, K 2015, Synthesis of the experimental work for the design rules improvement.

Synthesis of the experimental work for the design rules improvement. / Bernardi, Davide; Aktaa, Jarir; Blat-Yrieix, Martine; Bruchhausen, Matthias; Cristalli, Carlo; Dolci, Francesco; Holmström, Stefan; Lee, Hyeong-Yeon; Matheron, Philippe; Nilsson, Karf-Fredrik; Pohja, Rami; Vincent, W.; Zhang, K.

2015. 153 p.

Research output: Book/ReportReportProfessional

TY - BOOK

T1 - Synthesis of the experimental work for the design rules improvement

AU - Bernardi, Davide

AU - Aktaa, Jarir

AU - Blat-Yrieix, Martine

AU - Bruchhausen, Matthias

AU - Cristalli, Carlo

AU - Dolci, Francesco

AU - Holmström, Stefan

AU - Lee, Hyeong-Yeon

AU - Matheron, Philippe

AU - Nilsson, Karf-Fredrik

AU - Pohja, Rami

AU - Vincent, W.

AU - Zhang, K.

N1 - Project code: 71951

PY - 2015

Y1 - 2015

N2 - This report describes the experimental work carried out by the various partners within the MATTER Task 7.1 in support to the improvement of the design rules, especially for 9%Cr ferritic-martensitic steel (P91). The tests performed are aimed at evaluating the extent to which component design rules written for materials with a greater ductility and which have a hardening behaviour under cyclic loading (for example austenitic stainless steels), are applicable to P91 material which instead is typically characterized by cyclic softening. According to the MATTER DoW (Description of Work) document, these tests include ratcheting validation tests, low cycle fatigue (LCF) tests, creep-fatigue and relaxation-fatigue tests, creep-crack growth (CCG) and fatigue-crack growth (FCG) tests, tensile tests on aged P91 as well as pure creep tests including also tests in support to the definition of the negligible creep domain. Specific objective of the work is the creation of an experimental dataset that will be used in other MATTER Tasks (T4.2 and T4.3) as the basis to improve ratcheting and creep-fatigue rules in European Codes, in particular with a focus on the efficiency diagram method and the creep-fatigue interaction diagram in RCC-MRx.

AB - This report describes the experimental work carried out by the various partners within the MATTER Task 7.1 in support to the improvement of the design rules, especially for 9%Cr ferritic-martensitic steel (P91). The tests performed are aimed at evaluating the extent to which component design rules written for materials with a greater ductility and which have a hardening behaviour under cyclic loading (for example austenitic stainless steels), are applicable to P91 material which instead is typically characterized by cyclic softening. According to the MATTER DoW (Description of Work) document, these tests include ratcheting validation tests, low cycle fatigue (LCF) tests, creep-fatigue and relaxation-fatigue tests, creep-crack growth (CCG) and fatigue-crack growth (FCG) tests, tensile tests on aged P91 as well as pure creep tests including also tests in support to the definition of the negligible creep domain. Specific objective of the work is the creation of an experimental dataset that will be used in other MATTER Tasks (T4.2 and T4.3) as the basis to improve ratcheting and creep-fatigue rules in European Codes, in particular with a focus on the efficiency diagram method and the creep-fatigue interaction diagram in RCC-MRx.

KW - P91 steel

KW - mechanical HT tests

KW - design codes

M3 - Report

BT - Synthesis of the experimental work for the design rules improvement

ER -

Bernardi D, Aktaa J, Blat-Yrieix M, Bruchhausen M, Cristalli C, Dolci F et al. Synthesis of the experimental work for the design rules improvement. 2015. 153 p.