TY - GEN
T1 - Establishing a multi-laboratory test plan for environmentally assisted fatigue
AU - Bruchhausen, Matthias
AU - Mottershead, Kevin
AU - Hurley, Caitlin
AU - Métais, Thomas
AU - Cicero, Román
AU - Vankeerberghen, Marc
AU - Le Roux, Jean-Christophe
PY - 2017/1/1
Y1 - 2017/1/1
N2 - The European project INCEFA-PLUS will characterize
environmental fatigue in pressurized water reactor (PWR)
conditions. The aim is to develop new guidelines for
assessing environmental fatigue damage susceptibility of
nuclear power plant (NPP) components. The consortium
consists of 16 public and private organizations from
across Europe. The project is structured in two phases:
The first phase is an extensive fatigue testing program;
in the second phase, a procedure for estimating the
environmental fatigue degradation of the materials will
be formulated. During the test phase, a selection of
austenitic stainless steels used in NPPs will be
characterized with regard to fatigue. The test matrix
will focus on the effects of mean strain, strain
amplitude, hold time periods, and surface roughness on
fatigue life. Sensitivities to these parameters will be
tested in PWR environments with additional tests in air
for reference purposes. The study of hold time effects
will lead to very long testing times, limiting the total
number of tests. It is therefore crucial to establish a
test matrix that allows the study of the principal
effects of interest while taking into account the
nuisance effects, such as different specimen geometries,
particular material microstructures, and other
laboratory-dependent factors that may not be
well-controlled. Methods and considerations for
establishing a single test matrix are presented in this
work.
AB - The European project INCEFA-PLUS will characterize
environmental fatigue in pressurized water reactor (PWR)
conditions. The aim is to develop new guidelines for
assessing environmental fatigue damage susceptibility of
nuclear power plant (NPP) components. The consortium
consists of 16 public and private organizations from
across Europe. The project is structured in two phases:
The first phase is an extensive fatigue testing program;
in the second phase, a procedure for estimating the
environmental fatigue degradation of the materials will
be formulated. During the test phase, a selection of
austenitic stainless steels used in NPPs will be
characterized with regard to fatigue. The test matrix
will focus on the effects of mean strain, strain
amplitude, hold time periods, and surface roughness on
fatigue life. Sensitivities to these parameters will be
tested in PWR environments with additional tests in air
for reference purposes. The study of hold time effects
will lead to very long testing times, limiting the total
number of tests. It is therefore crucial to establish a
test matrix that allows the study of the principal
effects of interest while taking into account the
nuisance effects, such as different specimen geometries,
particular material microstructures, and other
laboratory-dependent factors that may not be
well-controlled. Methods and considerations for
establishing a single test matrix are presented in this
work.
KW - design of experiments
KW - environmentally assisted fatigue
KW - round robin
KW - nuclear power plant
KW - pressurized water reactor
UR - http://www.scopus.com/inward/record.url?scp=85021800973&partnerID=8YFLogxK
U2 - 10.1520/STP159820160047
DO - 10.1520/STP159820160047
M3 - Conference article in proceedings
SN - 978-0-8031-7639-3
VL - STP 1598
T3 - ASTM Selected Technical Papers
SP - 1
EP - 18
BT - Fatigue and Fracture Test Planning, Test Data Acquisitions and Analysis
A2 - Nikbin, Kamran
A2 - McKeighan, Peter C.
A2 - Wei, Zhigang
A2 - Harlow, Gary D.
PB - American Society for Testing and Materials (ASTM)
T2 - Symposium on Fatigue and Fracture Test Planning, Test Data Acquisitions and Analysis 2016
Y2 - 4 May 2016 through 5 May 2016
ER -