Results 31 to 40 of about 14,048,300 (182)

Effect of loading rate change on the mechanical properties of mudstone under uniaxial compression

Rock and Soil Mechanics, 2021
To study the effect of the loading rate change on the deformation and strength properties and creep behavior of mudstone, a series of uniaxial compression tests and graded loading creep tests was conducted on mudstone specimens at four loading rates (0 ...
LI Fu-lin, YANG Jian, LIU Wei-qun, FAN Zhen-hua, YANG Yu-gui   +4 more
doaj   +1 more source

Anisotropic creep model for soft soils [PDF]

, 2008
In this paper a new anisotropic model for time-dependent behaviour of soft soils is presented. The formulation is based on a previously developed isotropic creep model, assuming rotated Modified Cam Clay ellipses as contours of volumetric creep strain ...
Leoni, Martino, EC MRTN-CT-2004–512120 (Funder), , EC MRTN-CT-2004–512120 (Funder), , Academy of Finland Grant 210744 (Funder), Academy of Finland Grant 210744 (Funder), , University of Stuttgart, Vermeer, Pieter, University of Stuttgart, University of Strathclyde, , University of Strathclyde, Karstunen, Minna   +10 more
core   +4 more sources

Creep behaviors and constitutive model of transversely isotropic rocks

Yantu gongcheng xuebao, 2018
The bedded carbonaceous slate exhibits transversely isotropic creep properties. The creep behaviors of carbonaceous slate are studied using the triaxial compressive creep tests on horizontal bedding specimens and vertical bedding specimens.
WANG Zhe-chao 1, 2, ZONG Zhi 1, QIAO Li-ping 1, 2, LI Wei1, LIU Jie 1
doaj   +1 more source

Determination accuracy enhancement of viscoelastic constitutive model of optical glass

Materials & Design, 2023
This study proposes an effective method for improving the determination accuracy of the viscoelastic constitutive model via the combination of uniaxial creep with stress relaxation and the use of creep data to correct stress relaxation curves, known as ...
Guangyu Liu, Fengzhou Fang
doaj   +1 more source

The Establishment of a Rock Creep Model by Using Creep Bodies via an Improved Gene Expression Programming Algorithm

Applied Sciences
Rock creep commonly appears in rock mass engineering, and it should be paid appropriate attention. In this paper, studies on creep constitutive models of rocks were reviewed, and it was found that the types of creep constitutive models can generally be ...
Pingyang Fan, Junhua Chen, Chuankun Qiu, Junwen Chen, Shan Gao, Jiqing Hou, Min Wang   +6 more
doaj   +1 more source

A non-unified viscoplastic constitutive model based on irreversible thermodynamics and creep-fatigue life prediction for Type 316 stainless

Materials Research Express, 2022
In this work, to describe the cycle behavior considering fatigue-creep interaction, a non-unified viscoplastic constitutive model for 316 stainless steel is derived within the irreversible thermodynamic framework.
Yehui Cui, Xiangguo Zeng, Junfeng Xiao, Huayan Chen   +3 more
doaj   +1 more source

Finite Element Analysis on the Creep Constitutive Equation of High Modulus Asphalt Concrete

Advances in Materials Science and Engineering, 2015
In order to obtain the viscoelastic constitutive relation of High Modulus Asphalt Concrete (HMAC), the constitutive relationship is used to carry on the various numerical calculation, utilize integral transforming in its Bailey-Norton creep rule, and ...
Xiu-shan Wang, Tao-tao Fan, Lum Kitmeng
doaj   +1 more source

Nonlinear Viscoelastic-Plastic Creep Model of Rock Based on Fractional Calculus

Advances in Civil Engineering, 2022
A rock creep constitutive model is the core content of rock rheological mechanics theory and is of great significance for studying the long-term stability of engineering.
Erjian Wei, Bin Hu, Jing Li, Kai Cui, Zhen Zhang, Aneng Cui, Liyao Ma   +6 more
doaj   +1 more source

Research on Unsteady Burgers Creep Constitutive Model and Secondary Development Application

Applied Sciences
Considering the complexity and diversity of water-rich soft soil strata, indoor triaxial shear tests and creep tests were conducted on soft soil to explore its deformation law and creep characteristics.
Ruonan Zhu, Bo Wu, Shixiang Xu, Xi Liu, Heshan Li   +4 more
doaj   +1 more source

Non-stationary Nishihara model in the particle flow code

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, JIN Ai-bing, GAO Yong-tao, WANG Kai, SUN Hao   +4 more
doaj   +1 more source