Results 11 to 20 of about 6,699 (248)

Research on the Accumulated Plastic Strain of Expansive Soil under Subway Loading

Applied Sciences, 2023
Expansive soil near Hefei Xinqiao International Airport was selected as the research focus. The effects of different loading modes on the dynamic strain of the saturated remodeled expansive soil was investigated by indoor dynamic triaxial tests and the ...
Lei Zhu, Ying Guo, Gan Cheng, Xiangyang Liu   +3 more
doaj   +2 more sources

Intermittent cyclic loading of cartilage explants modulates fibronectin metabolism

Osteoarthritis and Cartilage, 1997
The aim of this study was to evaluate systematically the effect of tissue load, its amplitude, time of intermittence and duration of loading on the biosynthesis and release of fibronectin by intermittently loaded mature bovine articular cartilage explants.Cyclic compressive pressure was introduced using a sinusoidal waveform of 0.5 Hz-frequency with a ...
Steinmeyer, Jürgen, Ackermann, Beate, Raiss, Ruth X.   +2 more
openaire   +3 more sources

Intermittent Dynamic Compression Confers Anabolic Effects in Articular Cartilage

Applied Sciences, 2021
(1) Background: Mechanical loading is an essential part of the function and maintenance of the joint. Despite the importance of intermittent mechanical loading, this factor is rarely considered in preclinical models of cartilage, limiting their ...
Amalie Engstrøm, Frederik S. Gillesberg, Solveig S. Groen, Peder Frederiksen, Anne-Christine Bay-Jensen, Morten A. Karsdal, Christian S. Thudium   +6 more
doaj   +2 more sources

Plastic intermittency during cyclic loading: From dislocation patterning to microcrack initiation [PDF]

Physical Review Materials, 2019
In metallic materials subjected to cyclic loading, strain hardening as well as fatigue crack initiation have been linked for a long time with the evolution of dislocation patterns and structures. In particular, the development of low-energy dislocation configurations such as persistent slip bands (PSBs) is considered as a precursor to crack initiation.
Weiss, J., Rhouma, W, Deschanel, S., Truskinovsky, L.   +3 more
openaire   +4 more sources

Effect of post-peak cyclic load on mechanics and seepage characteristics of sandstone under different confining pressures [PDF]

Meitan kexue jishu, 2023
The mining disturbance causes the rock mass in a certain range of the coal seam floor to be in a post-peak state. Due to the excavation of adjacent roadways and the mining of coal seams, the post-peak rock mass undergoes a cyclic loading-unloading ...
Peisen ZHANG, Daqiang XU, Wei YAN, Xin HU, Xiao LI, Jiaxin FANG, Zhaoqiang JU, Ming ZHAO   +7 more
doaj   +2 more sources

Experimental study on the effect of confining pressure and interval time on the fatigue mechanical properties of mudstone [PDF]

E3S Web of Conferences
The mudstone interlayer experiences discontinuous cyclic loading during gas storage reservoir operation. To investigate the effects of intermittent action and confining pressure on the fatigue mechanical properties of mudstone.
Zhang Yuhao, Ren Lachun, Yao Peng, Jiang Deyi   +3 more
doaj   +2 more sources

Effects of intermittently applied cyclic loading on proteoglycan metabolism and swelling behaviour of articular cartilage explants

Osteoarthritis and Cartilage, 1999
The aim of this study was to evaluate the effect of tissue load, frequency and load duration on the biosynthesis and release of proteoglycans (PGs) as well as on the swelling behaviour of cultured mature bovine articular cartilage superimposed with intermittent loads.Cyclic compressive pressure was introduced for 1, 3 or 6 days using a sinusoidal ...
Steinmeyer, Jürgen, Knue, Sabine, Raiss, Ruth X., Pelzer, Ingeborg   +3 more
openaire   +3 more sources

Deformation characteristics of modified iron tailings under different cyclic loading modes

Yantu gongcheng xuebao, 2023
Using polypropylene fiber and cement to modify iron tailings, the effects of fiber content, dynamic-static ratio and curing age on the deformation characteristics of the fiber cement-modified iron tailing (FCIT) under different cyclic loading modes are ...
JIANG Ping 1, 2, WANG Zhichao 1, 2, XIAO Jingping 3, WANG Wei 1, 2, LI Na 1, 2, CHEN Yewen 1, 2, WU Erlu 1, 2
doaj   +1 more source

Fatigue failure and energy evolution of double-stepped fissures contained marble subjected to multilevel cyclic loads: a lab-scale testing

Frontiers in Materials, 2023
The instability of rock mass induced by the deterioration and failure of rock bridge is often encountered in hard rock engineering. Under engineering disturbance, a steep and gentle stepped sliding surface is prone to forming along the rock bridges ...
Di Wang, Zhixiong Luo, Hongbo Xia, Shangqing Gao, Peiliang Li, Juzhou Li, Yu Wang   +6 more
doaj   +1 more source

Influence of periodic cyclic loading and rest period on soft clay consolidation [PDF]

, 2023
Railways are often subjected to periodic cyclic loading and intermittent rest periods. Excessive consolidation settlements can affect the performance of railway tracks built on the soft subgrade.
Rujikiatkamjorn, C, Atapattu, S, Indraratna, B   +2 more
core   +1 more source