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Vertebral deformity arising from an accelerated “creep” mechanism [PDF]
European Spine Journal, 2012 Vertebral deformities often occur in patients who recall no trauma, and display no evident fracture on radiographs. We hypothesise that vertebral deformity can occur by a gradual creep mechanism which is accelerated following minor damage. "Creep" is continuous deformation under constant load.Forty-five thoracolumbar spine motion segments were tested ...
Luo, Jin +4 more
openaire +4 more sources
Accelerated Creep Testing of High Strength Aramid Webbing [PDF]
53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference<BR>20th AIAA/ASME/AHS Adaptive Structures Conference<BR>14th AIAA, 2012 A series of preliminary accelerated creep tests were performed on four variants of 12K and 24K lbf rated Vectran webbing to help develop an accelerated creep test methodology and analysis capability for high strength aramid webbings.
Doggett, William R. +3 more
core +4 more sources
Creep constitutive model of strain energy density considering the whole process of creep deformation. [PDF]
PLoS ONEAiming 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 +2 more sources
Research on the evolution characteristics of creep energy in rubber concrete and the damage constitutive model [PDF]
Scientific ReportsTo investigate the evolution law of energy and the damage constitutive model of concrete with different rubber replacement ratios under uniaxial creep, this paper systematically studied the creep energy evolution law of rubber concrete using uniaxial ...
Xiaodie Liu, Lei Cui, Zhixi Liu
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Accelerated Creep of Asphalt Concrete at Medium Temperatures
Applied SciencesIn this paper, the accelerated creep under uniaxial tension of hot fine-grained dense asphalt concrete at temperatures of 22–24 °C and stresses from 0.084 MPa to 0.596 MPa is experimentally investigated.
Alibay Iskakbayev +3 more
doaj +2 more sources
Creep model of roadway surrounding rock considering hardening effect and damage effect. [PDF]
PLoS ONEThe influence of confining pressure on creep characteristics was analyzed by carrying out creep tests of rocks under different confining pressures. A new creep model of roadway surrounding rock considering the combined influence of hardening effect and ...
Hongmiao Lv
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Creep failure characteristics and damage creep model of red layer soft rock based on Perzyna viscoplastic theory [PDF]
Scientific ReportsRock creep is essentially a process of damage accumulation. According to the damage evolution of rock under creep conditions, the TAW2000 triaxial test system is used to carry out triaxial creep test on red layer soft rock taken from Yibo Tunnel in ...
Lei Chen +6 more
doaj +2 more sources
Creep characteristics of muddy siltstone and its engineering application on cross-river tunnel stability [PDF]
Scientific ReportsMuddy siltstone combines the characteristics of both sandstone and mudstone, and is prone to instability over time. To study the long-term stability of tunnel engineering in this stratum, this article taking the cross-river metro tunnel section as the ...
Huijuan Deng +5 more
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A nonlinear creep model for surrounding rocks of tunnels based on kinetic energy theorem
Journal of Rock Mechanics and Geotechnical Engineering, 2023 The initiating condition for the accelerated creep of rocks has caused difficulty in analyzing the whole creep process. Moreover, the existing Nishihara model has evident shortcomings in describing the accelerated creep characteristics of the ...
Wenbo Liu +4 more
doaj +1 more source
Rock and Soil Mechanics, 2021 In order to study the long-term creep law of extremely soft coal rock, the uniaxial and triaxial creep tests of extremely soft coal rock subjected to single-stage loads were carried out by using the self-developed triaxial creep test system.
WANG Xing-kai +5 more
doaj +1 more source