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
PB - European Commission EC
ER -