A stochastic model for evolution of creep damage in engineering materials

被引：8

作者：

Roy, N. ^{[1
]}

Ghosh, R. N. ^{[2
]}

Bose, S. C. ^{[2
]}

机构：

[1] Natl Met Lab, Math Modeling & Simulat Div, Jamshedpur 831007, Bihar, India

[2] Natl Met Lab, Mat Sci & Technol Div, Jamshedpur 831007, Bihar, India

来源：

TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS | 2010年 / 63卷 / 2-3期

关键词：

creep; damage; stochastic modeling; Markov process;

D O I：

10.1007/s12666-010-0101-2

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

In this work a stochastic model for the creep damage evolution and associated scatter has been developed in terms of a discontinuous Markov process. The magnitude of damage has been described in the form of a probability distribution function whose evolution in time characterizes the nondeterministic nature of the damage accumulation process. The model is able to describe the state of damage along with the associated scatter at a given time at any stress level. The validity of the model has been established by comparing the predicted creep curves generated for a specific loading condition with those experimentally obtained for an austenitic stainless steel (Type 316, 18Cr 8 Ni 2Mo).

引用

页码：665 / 669

页数：5

共 50 条

[41] Damage evolution during creep of steels
Wilshire, B.
Burt, H.
INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING, 2008, 85 (1-2) : 47 - 54
[42] On creep damage evolution in thin plates
Altenbach, H
Naumenko, K
ADVANCES IN FRACTURE RESEARCH, VOLS 1-6, 1997, : 2243 - 2250
[43] CREEP OF ENGINEERING MATERIALS AND OF EARTH - INTRODUCTION
KELLY, A
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1978, 288 (1350): : 3 - 8
[44] The role of creep damage and initiation in the failure of creep brittle materials
Nikbin, KM
CREEP AND FRACTURE OF ENGINEERING MATERIALS AND STRUCTURES, 1996, : 405 - 414
[45] Damage evolution and localization in heterogeneous materials under dynamical loading: stochastic modelling
Mishnaevsky, LL
Schmauder, S
COMPUTATIONAL MECHANICS, 1997, 20 (1-2) : 89 - 94
[46] Damage evolution and localization in heterogeneous materials under dynamical loading: stochastic modelling
L. L. Mishnaevsky Jr.
S. Schmauder
Computational Mechanics, 1997, 20 : 89 - 94
[47] Dynamics of stochastic damage evolution
Silberschmidt, Vadim V.
International Journal of Damage Mechanics, 1998, 7 (01): : 84 - 98
[48] A creep constitutive model of rock considering initial damage and creep damage
Wang Qi-hu
Ye Yi-cheng
Liu Yang-zhang
Yao Nan
ROCK AND SOIL MECHANICS, 2016, 37 (37) : 57 - 62
[49] A creep damage model for initially isotropic materials with different properties in tension and compression
Betten, J
Sklepus, S
Zolochevsky, A
ENGINEERING FRACTURE MECHANICS, 1998, 59 (05) : 623 - 641
[50] Creep damage model for ceramics
Ecole Nationale Superieure des Mines, de Paris, Evry, France
Key Eng Mat, Pt 1 (702-705):

← 1 2 3 4 5 →