A microstructure sensitive modeling approach for fatigue life prediction considering the residual stress effect from heat treatment

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A microstructure sensitive modeling approach for fatigue life prediction considering the residual stress effect from heat treatment. / Gu, Chao; Lian, Junhe; Bao, Yanping; Münstermann, Sebastian.

In: Procedia Structural Integrity, Vol. 13, 2018, p. 2048-2052.

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@article{bf9e3dd821754263a31a7a26c5c04388,
title = "A microstructure sensitive modeling approach for fatigue life prediction considering the residual stress effect from heat treatment",
abstract = "A multiscale numerical method to study the high cycle fatigue (HCF) and very high cycle fatigue (VHCF) properties of bearing steels is proposed in this study. The method is based on the microstructur sensitive modeling approach resulting from the integrated computational materials ensfgineming concept, and further consider the effect of residual stress generated from the prior heat treatment processes. The microstructure features, including the grain size and shape distribution and inclusion size and shape description, are represented by the representative volume element (RVE) models. The matrix mechanical response to the cyclic loading is described by the crystal plasticity (CP) model. The CP material parameter set is calibrated inversely based on the strain controlled low cycle fatigue tests. The results show that the residual stresses, especially those around the inclusion, have a great effect on the fatigue properties, which provides the key factor to give the correct prediction of the fatigue crack initiation site. (C) 2018 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ECF22 organizers.",
keywords = "fatigue life, modeling, residual stress, microstructure, CRACK INITIATION, INCLUSIONS, STEELS",
author = "Chao Gu and Junhe Lian and Yanping Bao and Sebastian M{\"u}nstermann",
year = "2018",
doi = "10.1016/j.prostr.2018.12.210",
language = "English",
volume = "13",
pages = "2048--2052",
journal = "Procedia Structural Integrity",
issn = "2452-3216",
publisher = "Elsevier",

}

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TY - JOUR

T1 - A microstructure sensitive modeling approach for fatigue life prediction considering the residual stress effect from heat treatment

AU - Gu, Chao

AU - Lian, Junhe

AU - Bao, Yanping

AU - Münstermann, Sebastian

PY - 2018

Y1 - 2018

N2 - A multiscale numerical method to study the high cycle fatigue (HCF) and very high cycle fatigue (VHCF) properties of bearing steels is proposed in this study. The method is based on the microstructur sensitive modeling approach resulting from the integrated computational materials ensfgineming concept, and further consider the effect of residual stress generated from the prior heat treatment processes. The microstructure features, including the grain size and shape distribution and inclusion size and shape description, are represented by the representative volume element (RVE) models. The matrix mechanical response to the cyclic loading is described by the crystal plasticity (CP) model. The CP material parameter set is calibrated inversely based on the strain controlled low cycle fatigue tests. The results show that the residual stresses, especially those around the inclusion, have a great effect on the fatigue properties, which provides the key factor to give the correct prediction of the fatigue crack initiation site. (C) 2018 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ECF22 organizers.

AB - A multiscale numerical method to study the high cycle fatigue (HCF) and very high cycle fatigue (VHCF) properties of bearing steels is proposed in this study. The method is based on the microstructur sensitive modeling approach resulting from the integrated computational materials ensfgineming concept, and further consider the effect of residual stress generated from the prior heat treatment processes. The microstructure features, including the grain size and shape distribution and inclusion size and shape description, are represented by the representative volume element (RVE) models. The matrix mechanical response to the cyclic loading is described by the crystal plasticity (CP) model. The CP material parameter set is calibrated inversely based on the strain controlled low cycle fatigue tests. The results show that the residual stresses, especially those around the inclusion, have a great effect on the fatigue properties, which provides the key factor to give the correct prediction of the fatigue crack initiation site. (C) 2018 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ECF22 organizers.

KW - fatigue life

KW - modeling

KW - residual stress

KW - microstructure

KW - CRACK INITIATION

KW - INCLUSIONS

KW - STEELS

U2 - 10.1016/j.prostr.2018.12.210

DO - 10.1016/j.prostr.2018.12.210

M3 - Conference article

VL - 13

SP - 2048

EP - 2052

JO - Procedia Structural Integrity

JF - Procedia Structural Integrity

SN - 2452-3216

ER -

ID: 32482747