Results 51 to 60 of about 191,694 (304)

Viscoelastic plastic creep constitutive model based on energy conservation law and strain energy theory

open access: yesScientific Reports
On the basis of the law of conservation of energy, the three stages of rock creep are analyzed. The reasons for the difficulty in studying the accelerated creep stage of rocks using the traditional creep model are expounded.
Di Zhou   +9 more
doaj   +1 more source

Accelerated creep model for rock based on statistical damage principle

open access: yesYantu gongcheng xuebao, 2020
Aiming at the problems that the existing creep theoretical models cannot describe the accelerated creep characteristics of the viscoplastic phase of rock and how to determine the start conditions of its accelerated creep phase, the triaxial creep tests ...
LIU Wen-bo 1, 3, ZHANG Shu-guang 1, 2, CHEN Lei 3, SUN Bo-yi 3, LU Ping-ping 3
doaj   +1 more source

Analysis of Shear Characteristics of Deep, Anchored Rock Mass under Creep Fatigue Loading

open access: yesAdvances in Civil Engineering, 2021
To study the influence of earthquakes and engineering disturbances on the deformation of deeply buried rock masses, shear tests were carried out on anchored sandstone rock masses, anchored marble rock masses, and anchored granite rock masses under creep ...
Xiaofeng Li, Zhixiang Yin
doaj   +1 more source

A Fractional Order Creep Damage Model for Microbially Improved Expansive Soils

open access: yesFrontiers in Earth Science, 2022
Microbial Induced Calcite Precipitation method was used to improve the expansive soils of Nanning, Guangxi. The nonlinear shear creep behavior of microbially improved expansive soil was studied by triaxial consolidation drainage shear test.
Tian Xuwen   +6 more
doaj   +1 more source

Creep rupture of materials: insights from a fiber bundle model with relaxation

open access: yes, 2010
I adapted a model recently introduced in the context of seismic phenomena, to study creep rupture of materials. It consists of linear elastic fibers that interact in an equal load sharing scheme, complemented with a local viscoelastic relaxation ...
E. A. Jagla, H. Kawamura, K. Yamaguchi
core   +1 more source

Creep and fluidity of a real granular packing near jamming [PDF]

open access: yes, 2011
We study the internal dynamical processes taking place in a granular packing below yield stress. At all packing fractions and down to vanishingly low applied shear, a logarithmic creep is evidenced. The experiments are analyzed under the scope of a visco-
Bruand, Ary   +3 more
core   +5 more sources

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Creep constitutive model of strain energy density considering the whole process of creep deformation.

open access: yesPLoS ONE
Aiming at the problem that the traditional creep model is difficult to reflect the characteristics of accelerated creep stage of rock, the influence of stress state on accelerated creep is fully considered, and a constitutive model which can describe ...
Yuemei Li
doaj   +1 more source

Study on symmetric creep model based on creep curves and parametric sensitivity analysis

open access: yesMeitan kexue jishu
In order to obtain the creep characteristics of the surrounding rock of the Dianzhong water diversion tunnel and to study the long-term stability of the surrounding rock of the tunnel, a fully automated triaxial developed by Wuhan Institute of ...
Wenbo LIU   +3 more
doaj   +1 more source

Novel direct method on the life prediction of component under high temperature-creep fatigue conditions [PDF]

open access: yes, 2013
This paper presents a novel direct method, within the Linear Matching Method (LMM) framework, for the direct evaluation of steady state cyclic behaviour of structures subjected to high temperature – creep fatigue conditions.
Chen, Haofeng, Gorash, Yevgen
core  

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