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Title: 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:
; ; ;  [1]
  1. 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}
}

Conference:
Other availability
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