Zobrazeno 1 - 10
of 92
pro vyhledávání: '"M Niffenegger"'
Autor:
M. Niffenegger, V. Herrera Solaz
Publikováno v:
Volume 2: Computer Technology and Bolted Joints; Design and Analysis.
The prediction of damage mechanisms, such as fatigue in e.g. piping, requires the consideration of the microstructure because crack initiation starts at the grain level. Therefore, it is important to know the local strain/stress state, which due to t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c4059830192caee130480156c0a18998
https://doi.org/10.1115/pvp2021-62779
https://doi.org/10.1115/pvp2021-62779
Publikováno v:
Volume 7: Non-Destructive Examination.
Nondestructive evaluation (NDE) methods are widely used for inspecting safety relevant components in nuclear reactors. Most of these NDE-methods are optimized and applied for the detection of cracks but there is still no reliable NDE method for measu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::416d798c1fbd9914aadb3944d2fd75ed
https://doi.org/10.1115/pvp2020-21446
https://doi.org/10.1115/pvp2020-21446
Autor:
V. Herrera-Solaz, M. Niffenegger
Publikováno v:
International Journal of Fatigue. 100:84-93
The Sistaninia-Niffenegger Fatigue (SNF) model, a mesoscale hysteresis energy-based model of fatigue crack initiation, is calibrated and validated both by experiments and numerical modeling. The simulations are able to reproduce the fatigue life curv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8fab608301d0d504982b1641dd6d86b0
https://doi.org/10.1016/j.ijfatigue.2017.03.014
https://doi.org/10.1016/j.ijfatigue.2017.03.014
Autor:
M. Niffenegger, M. Sistaninia
Publikováno v:
International Journal of Fatigue. 70:163-170
A mesoscale model of fatigue crack formation and stress–strain behavior in crystalline alloys entitled Sistaninia–Niffenegger Fatigue (SNF) model is applied to AISI 316L austenitic stainless steel. An inelastic hysteresis energy criterion in conj
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3366b8cc27afac8cfed75a1dd782bf30
https://doi.org/10.1016/j.ijfatigue.2014.09.010
https://doi.org/10.1016/j.ijfatigue.2014.09.010
Autor:
M. Sistaninia, M. Niffenegger
Publikováno v:
International Journal of Fatigue. 66:118-126
A new finite element-based mesoscale model is developed to simulate the localization of deformation and the growth of microstructurally short fatigue cracks in crystalline materials by considering the anisotropic behavior of the individual grains. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02b393c07fa50c3ef27447ca570bc20a
https://doi.org/10.1016/j.ijfatigue.2014.03.018
https://doi.org/10.1016/j.ijfatigue.2014.03.018
Autor:
Hans J. Leber, M. Niffenegger
Publikováno v:
Journal of Nuclear Materials. 389:62-67
The degree of embrittlement of the reactor pressure vessel (RPV) limits the lifetime of nuclear power plants. Therefore, neutron irradiation-induced embrittlement of RPV steels demands accurate monitoring. Current federal legislation requires a surve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2392e59a332738dc6baaca6ef8e2fdb0
https://doi.org/10.1016/j.jnucmat.2009.01.008
https://doi.org/10.1016/j.jnucmat.2009.01.008
Autor:
Hans J. Leber, M. Niffenegger
Publikováno v:
Journal of Nuclear Materials. 377:325-330
In meta-stable austenitic stainless steels, fatigue is accompanied by a partial strain-induced transformation of paramagnetic austenite to ferromagnetic martensite [G.B. Olsen, M. Cohen, Kinetics of strain induced martensite nucleation, Metall. Trans
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0593ebee7ea5930c7450648f4bcc0c5f
https://doi.org/10.1016/j.jnucmat.2008.03.007
https://doi.org/10.1016/j.jnucmat.2008.03.007
Akademický článek
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Publikováno v:
Journal of Nuclear Materials. 296:305-311
The microstructural changes in the pre-crack stage of low-cycle fatigue damage (LCF) in austenitic piping steels were investigated by neutron and X-ray diffraction (XRD). The LCF damage evolution in the metastable austenitic steel causes a deformatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::99e1cc27e4e5ca10e937ada333e9dc07
https://doi.org/10.1016/s0022-3115(01)00547-5
https://doi.org/10.1016/s0022-3115(01)00547-5
