Results 1 to 10 of about 1,100 (217)

Creep Damage Evaluation using Uniaxial Miniature Specimens for Multiaxially Damaged Components [PDF]

open access: yesMATEC Web of Conferences, 2019
This study discusses a method of evaluating multiaxial creep damage for high temperature components subjected to multiaxial creep damage utilizing a miniature creep testing.
Kosaka Rui   +3 more
doaj   +1 more source

Application of a stochastic damage model to predict the variability of creep behavior for asphalt mixtures

open access: yesCase Studies in Construction Materials, 2023
The creep test is used as the main method of evaluating the rutting resistance of asphalt mixtures, but the variability has rarely been studied. Based on creep tests, this study investigated the stochastic nature of the mixture creep through mechanical ...
Qipeng Zhang   +5 more
doaj   +1 more source

A new shear creep damage model for rock masses after considering initial damage.

open access: yesPLoS ONE, 2023
For a long time, one of the important safety problems in open-pit mines is the stability of a large number of high slopes with gently inclined soft interlayer. Rock masses formed after long geological processes generally have some initial damage.
Bin Hu   +6 more
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

The effect of creep damage formulation on crack tip fields, creep stress intensity factor and crack growth assessments [PDF]

open access: yesFracture and Structural Integrity, 2017
Fields of stress, strain rate and process zone of a mode I creep crack growth are analyzed by employing damage evolution equations. Damage models for fracture of process zone represented by stress based formulation.
V. Shlyannikov, A. Tumanov
doaj   +2 more sources

Study on Nonlinear Damage Creep Model for Rocks under Cyclic Loading and Unloading

open access: yesAdvances in Materials Science and Engineering, 2021
To determine the nonlinear creep characteristics of rocks under cyclic loading and unloading conditions, a nonlinear Kelvin model and damage viscoplastic model are proposed.
Liangliang Zhang, Xiaojian Wang
doaj   +1 more source

A fractional order viscoelastic-plastic creep model for coal sample considering initial damage accumulation

open access: yesAlexandria Engineering Journal, 2021
In deep coal and rock mass engineering, extensive initial damage problems caused by excavation and unloading are critical to the long-term deformation and stability of underground projects.
Peng Huang   +4 more
doaj   +1 more source

In Situ 3D-ยต-Tomography on Particle-Reinforced Light Metal Matrix Composite Materials under Creep Conditions

open access: yesMetals, 2020
In transportation light metal matrix composites (L-MMCs) are used increasingly due to their improved creep resistance even at higher application temperatures. Therefore, the creep behavior and failure mechanisms of creep loaded particle reinforced L-MMCs
Bettina Camin, Lennart Hansen
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

Time-Dependent Creep Constitutive Model of Roadway Surrounding Rock Based on Creep Parameters

open access: yesGeofluids, 2022
In order to better study the creep deformation characteristics of rock under different stresses, the generalized Burgers model was used as the basic model after analyzing the creep characteristics of rock and its relationship with stress and strain, and ...
Yukun Ma   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy