Results 11 to 20 of about 109,321 (266)

Undrained heating effects on monotonic shear behaviors and critical cyclic stress ratios of deep-sea sediment

open access: yesYantu gongcheng xuebao, 2023
A series of temperature-controlled triaxial tests are conducted on the deep-sea sediment from the Western trough of the South China Sea. The undrained heating effects on undrained shear strength, pore pressure and critical cyclic stress ratio are ...
SUN Anyuan 1, YANG Gang 1, REN Yubin 1, KONG Gangqiang 2, YANG Qing 1
doaj   +1 more source

Cyclic compression of sands at constant stress ratio—experimental investigations and constitutive modelling

open access: yesActa Geotechnica, 2022
AbstractSeveral constitutive models for sands are based on an additive split of the effective stress rate into two terms. One term accounts for the deviatoric stress ratio $$\varvec{r}$$ r , the other for the mean effective stress $${p}$$ p ...
Christian Carow, Frank Rackwitz
openaire   +2 more sources

DEM analysis of macro- and micro-mechanical behaviors of cemented sand subjected to undrained cyclic loading

open access: yesYantu gongcheng xuebao, 2021
Natural or artificial cementation formed between sand particles can strengthen the liquefaction resistance of sand. Hence, it is significant to investigate the dynamic behavior of cemented sand at the macro- and micro-scale.
ZHANG Fu-guang , NIE Zhuo-chen , CHEN Meng-fei , FENG Huai-ping
doaj   +1 more source

Effects of the Change of the Maximum Stress and the Stress Ratio on the Cyclic Creep Behaviors

open access: yesBulletin of JSME, 1981
Cyclic creep behaviors of carbon steel are investigated by the true stress controlled low-cycle fatigue tests, stepwise or linearly increasing or decreasing maximum stress with a changing stress ratio. The constitutive equation proposed previously by the authors is found to be applicable to represent the strain accumulations in both increasing and ...
YOSHIDA, Fusahito   +2 more
openaire   +2 more sources

Coupling effects of bidirectional cyclic loading and loading frequency on pore water pressure of saturated soft clay

open access: yesYantu gongcheng xuebao, 2017
A series of undrained cyclic tests with variable confining pressures are conducted on Ningbo saturated soft clay by using the GDS cyclic triaxial system. In this study, the coupling effects of cyclic deviatoric stress and cyclic confining pressure on the
HUANG Jue-hao 1, 2, CHEN Jian 1, 2, KE Wen-hui 3, ZHONG Yu 4, QIU Yue-feng 1, 2
doaj   +1 more source

Cyclic stress-controlled tests on offshore clay

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2017
One of the main concerns in cyclic behavior of soft clay is gradual degradation with the progression of loading cycle. A series of cyclic constant-volume direct simple shear (CDSS) loading tests was performed on Malaysia offshore clay to study its ...
S.Y. Thian, C.Y. Lee
doaj   +1 more source

Post-Cyclic Drained Shear Behaviour of Fujian Sand under Various Loading Conditions

open access: yesJournal of Marine Science and Engineering, 2022
In offshore engineering, the sand beneath an embankment may be subjected to traffic loads, resulting in a series of engineering issues. The behaviour of the sand beneath the embankment may change under a long-term traffic load. A series of drained cyclic
Ying Liu   +3 more
doaj   +1 more source

Research on the Accumulated Pore Pressure of Expansive Soil under Subway Loading

open access: yesBuildings, 2023
Taking the expansive soil near Hefei Xinqiao International Airport as the research subject, indoor dynamic triaxial tests were conducted to investigate the influence of different loading methods on the dynamic pore pressure of saturated remolded ...
Lin Qing, Lei Zhu, Ying Guo, Gan Cheng
doaj   +1 more source

Influences of Stress Ratio on Cyclic Stress Corrosion Crack Growth Characteristics of a High Strength Steel

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A, 1981
Influences of stress ratios and stress cycle frequencies on cyclic stress corrosion crack growth characteristics of a high-strength steel have been investigated. The influences of stress ratios on crack growth rate under cyclic SCC are clearly distinguished between above and below KISCC. In the range of Kmax, KFSCC≤ Kmax < KISCC, a decrease of R causes
ENDO, Kichiro   +2 more
openaire   +3 more sources

Experimental Study on Long-term Dynamic and Mechanical Properties of Negative Temperature Fill Along Qinghai—Tibet Railway

open access: yes工程科学与技术, 2023
In order to evaluate the stability of roadbed in frozen soil area, the dynamic shear modulus and damping ratio of fill along Qinghai—Tibet railway are analyzed by means of laboratory test and theoretical analysis.
Liang DONG   +4 more
doaj  

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