Results 21 to 30 of about 44,930 (304)

Determination of the parameters of rock viscoelastic creep model and analysis of parameter degradation

open access: yesScientific Reports, 2023
Different stress creep tests are conducted on the sandstone in this study to better describe the creep properties of rocks under different stress states. A model that describes the rock creep process is established.
Zhiming Zheng, Yu Yang, Cheng Pan
doaj   +1 more source

Triaxial creep test and model study of red sandstone based on Weibull distribution

open access: yesShuiwen dizhi gongcheng dizhi, 2023
At present, the creep problem of underground engineering surrounding rock still exists, and the creep theory needs to be further enriched. In essence, rock creep is a process of constant accumulation of damage.
Weize ZHANG   +3 more
doaj   +1 more source

Creep and shrinkage of ecological self consolidating concrete [PDF]

open access: yes, 2015
Optimizing concrete mixtures with regard to replace a part of cement content with supplementary cementitious materials can prompt the design of ecological-self consolidating concrete.
Alghazali, Hayder H., Myers, John J.
core   +1 more source

Experimental Study on Shear Creep and Long-Term Strength of Clay-Type Muddy Interlayer

open access: yesApplied Sciences, 2023
In order to have a better understanding of the shear creep characteristics of muddy interlayer in unstable landslides, we took the more “inferior” clay muddy interlayer as the research object, and shear creep experiments under different normal stress ...
Pengzheng Guo   +5 more
doaj   +1 more source

Accelerated Stage Creep and Creep Rupture under Temperature Cycling

open access: yesBulletin of JSME, 1961
In the present paper, the influence of temperature cycling on the accelerated stage creep and the rupture life is discussed by employing AISI 318 type stainless steel. In this discussion, the strength of material under temperature cycling was compared with that under steady temperature by introducing the idea of the equivalent steady temperature for ...
Shuji TAIRA, Masateru OHNAMI
openaire   +3 more sources

Вплив попиту на процес ціноутворення [PDF]

open access: yes, 2008
The creep behavior of nanocellulose films and aerogels are studied in a dynamic moisture environment, which is crucial to their performance in packaging applications.
Karabulut, Erdem   +4 more
core   +2 more sources

Statistical Physics of Rupture in Heterogeneous Media [PDF]

open access: yes, 2005
The damage and fracture of materials are technologically of enormous interest due to their economic and human cost. They cover a wide range of phenomena like e.g.
Sornette, D.
core   +3 more sources

Experimental investigation of the creep damage evolution of coal rock around gas extraction boreholes at different water contents.

open access: yesPLoS ONE, 2023
The creep process of the coal rock around the extraction boreholes under stress-water coupling is an important factor affecting the stability of the boreholes. To study the influence of the water content of perimeter of the coal rock around the boreholes
Jiangbo Guo   +3 more
doaj   +2 more sources

An accelerated springback compensation method for creep age forming [PDF]

open access: yesThe International Journal of Advanced Manufacturing Technology, 2018
Springback compensation is essential for tool design in creep age forming (CAF) process. In this study, a new accelerated springback compensation method integrating springback mechanism of a plate with creep-ageing behaviour of materials has been developed for CAF tool design to manufacture both singly and varyingly curved products.
Li, Y   +5 more
openaire   +3 more sources

Non-stationary Nishihara model in the particle flow code

open access: yes工程科学学报, 2015
In order to accurately simulate the whole process of rock creep and explore the generation and development of mircofractures from the meso-level,a visco-elastoplastic Nishihara rheological constitutive model is developed in the two-dimensional particle ...
YANG Zhen-wei   +4 more
doaj   +1 more source

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