Analysis of the intergranular cracking process inside polycrystalline heat-resistant materials under creep-fatigue conditions
Abstract
In order to investigate the intergranular failure process in polycrystalline materials under creep-dominant fatigue, numerical simulation of inner small cracks was conducted on the basis of a simple probabilistic model. Although the simulation condition is determined from experimental observation of the cross section of specimens interrupted at different fatigue cycles, the simulation is carried out continuously and reproduces inner cracking behavior throughout the fatigue life. This enables one not only to extract the spatial distribution of inner cracks at arbitrary creep-fatigue cycles, but also to calculate the propagation rate of each inner crack.
- Authors:
-
- Kyoto Univ. (Japan). Dept. of Engineering Physics and Mechanics
- Publication Date:
- OSTI Identifier:
- 624248
- Report Number(s):
- CONF-950618-
ISBN 0-8031-2413-9; TRN: IM9820%%216
- Resource Type:
- Conference
- Resource Relation:
- Conference: 27. ASTM symposium on fatigue and fracture mechanics, Williamsburg, VA (United States), 26-29 Jun 1995; Other Information: PBD: 1997; Related Information: Is Part Of Elevated temperature effects on fatigue and fracture; Piascik, R.S. [ed.] [NASA Langley Research Center, Hampton, VA (United States)]; Gangloff, R.P. [ed.] [Univ. of Virginia, Charlottesville, VA (United States)]; Saxena, A. [ed.] [Georgia Inst. of Tech., Atlanta, GA (United States)]; PB: 234 p.; ASTM special technical publication, 1297
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; CRACK PROPAGATION; HEAT RESISTANT MATERIALS; POLYCRYSTALS; CREEP; FATIGUE; MATHEMATICAL MODELS; FRACTURE MECHANICS
Citation Formats
Tada, Naoya, Zhou, W, Kitamura, Takayuki, and Ohtani, Ryuichi. Analysis of the intergranular cracking process inside polycrystalline heat-resistant materials under creep-fatigue conditions. United States: N. p., 1997.
Web.
Tada, Naoya, Zhou, W, Kitamura, Takayuki, & Ohtani, Ryuichi. Analysis of the intergranular cracking process inside polycrystalline heat-resistant materials under creep-fatigue conditions. United States.
Tada, Naoya, Zhou, W, Kitamura, Takayuki, and Ohtani, Ryuichi. 1997.
"Analysis of the intergranular cracking process inside polycrystalline heat-resistant materials under creep-fatigue conditions". United States.
@article{osti_624248,
title = {Analysis of the intergranular cracking process inside polycrystalline heat-resistant materials under creep-fatigue conditions},
author = {Tada, Naoya and Zhou, W and Kitamura, Takayuki and Ohtani, Ryuichi},
abstractNote = {In order to investigate the intergranular failure process in polycrystalline materials under creep-dominant fatigue, numerical simulation of inner small cracks was conducted on the basis of a simple probabilistic model. Although the simulation condition is determined from experimental observation of the cross section of specimens interrupted at different fatigue cycles, the simulation is carried out continuously and reproduces inner cracking behavior throughout the fatigue life. This enables one not only to extract the spatial distribution of inner cracks at arbitrary creep-fatigue cycles, but also to calculate the propagation rate of each inner crack.},
doi = {},
url = {https://www.osti.gov/biblio/624248},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Dec 31 00:00:00 EST 1997},
month = {Wed Dec 31 00:00:00 EST 1997}
}
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