TY - GEN
T1 - Ductile fracture toughness estimation based on CVN upper shelf energy
AU - Wallin, Kim
PY - 2001
Y1 - 2001
N2 - J-R -curve testing is costly and difficult. The results
may also sometimes be unreliable. For less demanding
structures, J-R -curve testing is therefore not
practical. The Charpy-V-notch test provides information
about the energy needed to fracture a small specimen in
half. On the upper shelf this energy relates to ductile
fracture resistance and it is possible to correlate it to
the J-R -curve. Here, a simple power law description of
the J-R -curve was correlated to the CVNUS energy. This
new correlation corresponds essentially to a 5 % lower
bound and conforms well with earlier correlations,
regardless of the definition of the ductile fracture
toughness parameter.
AB - J-R -curve testing is costly and difficult. The results
may also sometimes be unreliable. For less demanding
structures, J-R -curve testing is therefore not
practical. The Charpy-V-notch test provides information
about the energy needed to fracture a small specimen in
half. On the upper shelf this energy relates to ductile
fracture resistance and it is possible to correlate it to
the J-R -curve. Here, a simple power law description of
the J-R -curve was correlated to the CVNUS energy. This
new correlation corresponds essentially to a 5 % lower
bound and conforms well with earlier correlations,
regardless of the definition of the ductile fracture
toughness parameter.
M3 - Conference article in proceedings
SN - 951-38-5716-6
VL - 2
T3 - VTT Symposium
SP - 635
EP - 646
BT - BALTICA V
PB - VTT Technical Research Centre of Finland
CY - Espoo
T2 - BALTICA V - Condition and Life Management for Power Plants
Y2 - 6 June 2001 through 8 June 2001
ER -