Results 21 to 30 of about 37,286 (243)

An elastic-viscoplastic creep model for describing creep behavior of layered rock

Frontiers in Materials, 2023
To describe the full-stage creep behavior of layered rock accurately, a new elastic-viscoplastic creep model is proposed based on fractional order theory in this manuscript, which consists of a Hooke elastomer, a fractional Abel dashpot, a Kelvin body ...
Yukun Li, Mingxuan Shen, Bin Du, Shisong Yuan   +3 more
doaj   +1 more source

Creep Behavior of the Factorable BKZ Constitutive Model

Nihon Reoroji Gakkaishi(Journal of the Society of Rheology, Japan), 1997
Kunihiro Osaki, H. Watanabe, Tadashi Inoue   +2 more
openalex   +3 more sources

Research on Creep Test of Compacted Graphite Cast Iron and Parameter Identification of Constitutive Model under Wide Range of Temperature and Stress

Applied Sciences, 2022
With the increase in engine power density, the temperature and stress carried by the cylinder head during operation also increase. The thermal engine fatigue life prediction of the cylinder head needs to consider accurate and reasonable creep ...
Guoxi Jing, Shubo Li, Guang Chen, Junchao Wei, Shuai Sun, Junhai Zhang   +5 more
doaj   +1 more source

Influence of constitutive model on calculation results of creep deformation response of notched specimen of GH4169 alloy

Journal of Aeronautical Materials, 2021
In view of the creep deformation failure of areo-engine high temperature components, the elastoplastic and creep deformation response of GH4169 alloy smooth and notched plate specimens at 650 ℃ is calculated using elastoplastic coupled creep constitutive
HU Xianming, JI Dawei, ZHUANG Shuying, HU Xuteng   +3 more
doaj   +1 more source

A Creep Constitutive Model, Based on Deformation Mechanisms and Its Application to Creep Crack Growth

Metals, 2022
In this paper, a constitutive model, based on the creep deformation mechanism in P91 steel, under a wide range of stress levels, was established and embedded into finite element software.
Jingwei Zhang, Jie Li, Jingyi Zan, Zijian Guo, Kanglin Liu   +4 more
doaj   +1 more source

The creep behavior of simple structures with a stress range-dependent constitutive model [PDF]

, 2012
High temperature design remains an issue for many components in a variety of industries. Although finite element analysis for creep is now an accessible tool, most analyses outside the research domain use long standing and very simple constitutive models
Boyle, James
core   +1 more source

High Temperature Mechanical Constitutive Modeling of a High-Nb TiAl Alloy

Journal of Aeronautical Materials, 2018
Uniaxial tensile, low cycle fatigue, fatigue-creep interaction and creep experiments of a novel high-Nb TiAl alloy (i.e. Ti-45Al-8Nb-0.2W-0.2B-0.02Y (atom fraction/%)) were conducted at 750℃ to obtain its tested data and curves.
DONG Chengli, YU Huichen, JIAO Zehui, KONG Fantao, CHEN Yuyong   +4 more
doaj   +1 more source

Experimental and numerical analysis of initial plasticity in P91 steel small punch creep samples [PDF]

, 2017
To date, the complex behaviour of small punch creep test (SPCT) specimens has not been completely understood, making the test hard to numerically model and the data difficult to interpret.
AA Saad, B Cacciapuoti, B Gülçimen, B Wilshire, B Wilshire, B. Cacciapuoti, CEN, D Bagloeva, D Blagoeva, DF Li, F Cortellino, F Cortellino, F Dobeš, F Dobeš, F. Cortellino, FH Lin, J Chakrabarty, J. P. Rouse, JD Parker, JM Baik, JP Rouse, JP Rouse, JW Hutchinson, K Milička, K Tai, KI Kobayashi, M Evans, M Kobayashi, M Willis, MPS Manahan, P Dymáček, P Dymáček, P Dymáček, P Dymáček, RC Hurst, RW Evans, S Holmstrom, T. H. Hyde, TH Hyde, TH Hyde, TH Hyde, TH Hyde, W. Sun, X Ling, Y Li, Y Liu, YW Ma, Z Yang, Z Zhou   +48 more
core   +2 more sources

Triaxial creep damage characteristics of sandstone under high crustal stress and its constitutive model for engineering application

Deep Underground Science and Engineering, 2023
The creep characteristics of rock under high crustal stress are of important influence on the long‐term stability of deep rock engineering. To study the creep characteristics and engineering application of sandstone under high crustal stress, this study ...
Dongxu Chen, Laigui Wang, Pierre Darry Versaillot, Chuang Sun   +3 more
doaj   +1 more source

A re-assessment of elastic follow-up in high temperature piping [PDF]

, 2012
The problem of elastic follow‐up in high temperature piping has a long (and interesting) history. Until a paper by Robinson1 in 1955 it was assumed that since the piping was ‘deformation controlled’, the strain would remain broadly constant with the ...
Boyle, James
core   +1 more source