TY - GEN
T1 - Mesoscale simulation of corrosion fatigue by an integrated transgranular and intergranular crack growth method
AU - Yuan, H.
AU - Zhang, W.
AU - Kim, J.
AU - Liu, Y.
N1 - Funding Information:
This material is based upon work partially supported by the National Science Foundation under Grant Number (NSF Grant Number CMMI-1537121). This support is greatly appreciated. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.
Publisher Copyright:
© 2017, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.
PY - 2017
Y1 - 2017
N2 - An integrated transgranular and intergranular crack growth method (ITICGM) is proposed to simulate short crack growth under corrosion fatigue. In this method, the microstructure-sensitive fatigue model and crystal plasticity-based fatigue indicator parameter (FIP) are used to describe microstructural fatigue damage in representative volume elements consisting of multiple grains. Corrosion effect is also taken into account to accurately predict the behavior of intergranular crack segments by introducing a hydrogen-diffusion informed cohesive zone model. With the proposed corrosion-informed methodology, the scattering crack behavior of steel under high cycle fatigue (HCF) is numerically observed and comparatively studied with three approaches such as transgranular crack growth method (TCGM), ITICGM, and corrosion-informed ITICGM.
AB - An integrated transgranular and intergranular crack growth method (ITICGM) is proposed to simulate short crack growth under corrosion fatigue. In this method, the microstructure-sensitive fatigue model and crystal plasticity-based fatigue indicator parameter (FIP) are used to describe microstructural fatigue damage in representative volume elements consisting of multiple grains. Corrosion effect is also taken into account to accurately predict the behavior of intergranular crack segments by introducing a hydrogen-diffusion informed cohesive zone model. With the proposed corrosion-informed methodology, the scattering crack behavior of steel under high cycle fatigue (HCF) is numerically observed and comparatively studied with three approaches such as transgranular crack growth method (TCGM), ITICGM, and corrosion-informed ITICGM.
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U2 - 10.2514/6.2017-0888
DO - 10.2514/6.2017-0888
M3 - Conference contribution
AN - SCOPUS:85088756205
SN - 9781624104534
T3 - 58th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2017
BT - 58th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2017
PB - American Institute of Aeronautics and Astronautics Inc, AIAA
T2 - 58th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2017
Y2 - 9 January 2017 through 13 January 2017
ER -