Abstract
The most dangerous fracture of creep-fatigue is caused by multiple small cracks which initiate and grow inside of materials. In this study, a numerical simulation method is proposed on the initiation and growth of inner small cracks on the basis of the experimental observation of a Type 304 stainless steel during creep-fatigue in order to elucidate the evolution process of damage. The model proposed in this study is similar to that for creep-fatigue intergranular fracture of surface cracking type which has already been reported by the authors. It is based on a discrete model of grain boundaries having random shape and sizes with random fracture resistances and a Monte Carlo simulation combined with a damage mechanics concept. As a result, the spatial and temporal distributions of inner small cracks are successfully evaluated by the simulation.
| Original language | English |
|---|---|
| Pages (from-to) | 84-89 |
| Number of pages | 6 |
| Journal | Zairyo/Journal of the Society of Materials Science, Japan |
| Volume | 44 |
| Issue number | 496 |
| Publication status | Published - Jan 1995 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Chemical Engineering (miscellaneous)
- Metals and Alloys
- Polymers and Plastics
Cite this
Creep-fatigue intergranular fracture of inner cracking type in type 304 stainless steel numerical simulation on initiation and growth of small cracks. / Tada, Naoya; Zhou, Weisheng; Kitamura, Takayuki; Ohtani, Ryuichi.
In: Zairyo/Journal of the Society of Materials Science, Japan, Vol. 44, No. 496, 01.1995, p. 84-89.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Creep-fatigue intergranular fracture of inner cracking type in type 304 stainless steel numerical simulation on initiation and growth of small cracks
AU - Tada, Naoya
AU - Zhou, Weisheng
AU - Kitamura, Takayuki
AU - Ohtani, Ryuichi
PY - 1995/1
Y1 - 1995/1
N2 - The most dangerous fracture of creep-fatigue is caused by multiple small cracks which initiate and grow inside of materials. In this study, a numerical simulation method is proposed on the initiation and growth of inner small cracks on the basis of the experimental observation of a Type 304 stainless steel during creep-fatigue in order to elucidate the evolution process of damage. The model proposed in this study is similar to that for creep-fatigue intergranular fracture of surface cracking type which has already been reported by the authors. It is based on a discrete model of grain boundaries having random shape and sizes with random fracture resistances and a Monte Carlo simulation combined with a damage mechanics concept. As a result, the spatial and temporal distributions of inner small cracks are successfully evaluated by the simulation.
AB - The most dangerous fracture of creep-fatigue is caused by multiple small cracks which initiate and grow inside of materials. In this study, a numerical simulation method is proposed on the initiation and growth of inner small cracks on the basis of the experimental observation of a Type 304 stainless steel during creep-fatigue in order to elucidate the evolution process of damage. The model proposed in this study is similar to that for creep-fatigue intergranular fracture of surface cracking type which has already been reported by the authors. It is based on a discrete model of grain boundaries having random shape and sizes with random fracture resistances and a Monte Carlo simulation combined with a damage mechanics concept. As a result, the spatial and temporal distributions of inner small cracks are successfully evaluated by the simulation.
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UR - http://www.scopus.com/inward/citedby.url?scp=0029211136&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0029211136
VL - 44
SP - 84
EP - 89
JO - Zairyo/Journal of the Society of Materials Science, Japan
JF - Zairyo/Journal of the Society of Materials Science, Japan
SN - 0514-5163
IS - 496
ER -