Crack tip fields at crack initiation and growth under monotonic and large amplitude cyclic loading: Experimental and FE analyses

Jin Ha Hwang; Hune Tae Kim; Yun Jae Kim; Hyun Suk Nam; Jin Weon Kim

doi:10.1016/j.ijfatigue.2020.105889

Crack tip fields at crack initiation and growth under monotonic and large amplitude cyclic loading: Experimental and FE analyses

Jin Ha Hwang, Hune Tae Kim, Yun Jae Kim, Hyun Suk Nam, Jin Weon Kim

School of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

In this paper, experiment and FE analyses are performed to investigate crack tip deformation and stress fields under monotonic and large amplitude cyclic loading. Fracture tests using C(T) specimens made of SA508 Gr.1a and TP316 are performed under monotonic and cyclic loading. Using the debonding analysis, it is found that the isotropic hardening model is relevant for monotonic loading, the kinematic hardening for SA508 Gr.1a under cyclic loading, and the Chaboche combined hardening for TP316 under cyclic loading. Using the relevant hardening model, crack tip deformation and stress fields at crack initiation and growth are presented.

Original language	English
Article number	105889
Journal	International Journal of Fatigue
Volume	141
DOIs	https://doi.org/10.1016/j.ijfatigue.2020.105889
Publication status	Published - 2020 Dec

Bibliographical note

Funding Information:
This research was supported by National Research Foundation (NRF) funded by Ministry of Science and ICT ( NRF-2018M2A8A4084016 ).

Publisher Copyright:
© 2020

Keywords

Crack growth
Crack tip deformation
Crack tip stress fields
Large-amplitude cyclic loading
Monotonic loading

ASJC Scopus subject areas

Modelling and Simulation
Materials Science(all)
Mechanics of Materials
Mechanical Engineering
Industrial and Manufacturing Engineering

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10.1016/j.ijfatigue.2020.105889

Cite this

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title = "Crack tip fields at crack initiation and growth under monotonic and large amplitude cyclic loading: Experimental and FE analyses",

abstract = "In this paper, experiment and FE analyses are performed to investigate crack tip deformation and stress fields under monotonic and large amplitude cyclic loading. Fracture tests using C(T) specimens made of SA508 Gr.1a and TP316 are performed under monotonic and cyclic loading. Using the debonding analysis, it is found that the isotropic hardening model is relevant for monotonic loading, the kinematic hardening for SA508 Gr.1a under cyclic loading, and the Chaboche combined hardening for TP316 under cyclic loading. Using the relevant hardening model, crack tip deformation and stress fields at crack initiation and growth are presented.",

keywords = "Crack growth, Crack tip deformation, Crack tip stress fields, Large-amplitude cyclic loading, Monotonic loading",

author = "Hwang, {Jin Ha} and Kim, {Hune Tae} and Kim, {Yun Jae} and Nam, {Hyun Suk} and Kim, {Jin Weon}",

note = "Funding Information: This research was supported by National Research Foundation (NRF) funded by Ministry of Science and ICT ( NRF-2018M2A8A4084016 ). Publisher Copyright: {\textcopyright} 2020",

year = "2020",

month = dec,

doi = "10.1016/j.ijfatigue.2020.105889",

language = "English",

volume = "141",

journal = "International Journal of Fatigue",

issn = "0142-1123",

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T1 - Crack tip fields at crack initiation and growth under monotonic and large amplitude cyclic loading

T2 - Experimental and FE analyses

AU - Hwang, Jin Ha

AU - Kim, Hune Tae

AU - Kim, Yun Jae

AU - Nam, Hyun Suk

AU - Kim, Jin Weon

PY - 2020/12

Y1 - 2020/12

N2 - In this paper, experiment and FE analyses are performed to investigate crack tip deformation and stress fields under monotonic and large amplitude cyclic loading. Fracture tests using C(T) specimens made of SA508 Gr.1a and TP316 are performed under monotonic and cyclic loading. Using the debonding analysis, it is found that the isotropic hardening model is relevant for monotonic loading, the kinematic hardening for SA508 Gr.1a under cyclic loading, and the Chaboche combined hardening for TP316 under cyclic loading. Using the relevant hardening model, crack tip deformation and stress fields at crack initiation and growth are presented.

AB - In this paper, experiment and FE analyses are performed to investigate crack tip deformation and stress fields under monotonic and large amplitude cyclic loading. Fracture tests using C(T) specimens made of SA508 Gr.1a and TP316 are performed under monotonic and cyclic loading. Using the debonding analysis, it is found that the isotropic hardening model is relevant for monotonic loading, the kinematic hardening for SA508 Gr.1a under cyclic loading, and the Chaboche combined hardening for TP316 under cyclic loading. Using the relevant hardening model, crack tip deformation and stress fields at crack initiation and growth are presented.

KW - Crack growth

KW - Crack tip deformation

KW - Crack tip stress fields

KW - Large-amplitude cyclic loading

KW - Monotonic loading

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DO - 10.1016/j.ijfatigue.2020.105889

M3 - Article

AN - SCOPUS:85089478252

SN - 0142-1123

VL - 141

JO - International Journal of Fatigue

JF - International Journal of Fatigue

M1 - 105889

ER -

Crack tip fields at crack initiation and growth under monotonic and large amplitude cyclic loading: Experimental and FE analyses

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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