Results 31 to 40 of about 52,179 (162)

Gravity Load Collapse Behavior of Nonengineered Reinforced Concrete Columns

Advances in Civil Engineering, 2018
This paper aims at investigating gravity load collapse behavior of extremely poor quality reinforced concrete columns under cyclic loading. Such columns were usually constructed by local people and may not be designed to meet any of the standards. It was
Chichaya Boonmee, Kittipoom Rodsin, Krissachai Sriboonma   +2 more
doaj   +1 more source

Tension Force Estimation in Axially Loaded Members using Wearable Piezoelectric Interface Technique

Sensors, 2018
Force changes in axially loaded members can be monitored by quantifying variations in impedance signatures. However, statistical damage metrics, which are not physically related to the axial load, often lead to difficulties in accurately estimating the ...
Joo-Young Ryu, Thanh-Canh Huynh, Jeong-Tae Kim   +2 more
doaj   +1 more source

Comparison of reamed long and short intramedullary nail constructs in unstable intertrochanteric femur fractures

OTA International, 2020
. Objectives:. There is no definitive evidence to guide clinicians in their decision-making for implant choice regarding long or short intramedullary nails for unstable fracture patterns.
Laura E. Blum, MD, Michael A. Yee, MD, Cyril Mauffrey, MD, MRCS, FRCS, James A. Goulet, MD, Aaron M. Perdue, MD, Mark E. Hake, MD   +5 more
doaj   +1 more source

Mechanical behaviour of medium-grained sandstones exposed to differential cyclic loading with distinct loading and unloading rates

Journal of Rock Mechanics and Geotechnical Engineering, 2022
This work aims to investigate the mechanical behaviour of medium-grained sandstones under cyclic loading with different loading/unloading rates. This type of cyclic loading is called differential cyclic loading (DCL) and is considered for testing rock ...
Zhengyang Song, Heinz Konietzky, Yunfeng Wu, Kun Du, Xin Cai   +4 more
doaj   +1 more source

Comparative Analysis of Axial Load Capacity for Piled-Raft Foundation with Changes in Groundwater Level

KSCE Journal of Civil Engineering, 2019
Groundwater affects the load carrying behavior of foundations as the effective stress changes with the location of groundwater level (GWL) where the non-linear variations in stiffness and strength and the GWL influence zones below the foundation are involved.
Yanghoon Roh, Incheol Kim, Garam Kim, Junhwan Lee   +3 more
openaire   +1 more source

The role of cage height on the flexibility and load sharing of lumbar spine after lumbar interbody fusion with unilateral and bilateral instrumentation: a biomechanical study

BMC Musculoskeletal Disorders, 2017
Background One- and two-level lumbar interbody fusion with unilateral instrumentation is as effective as that with bilateral instrumentation. The height of the interbody cage influences the operated segment stability and the fusion technique success. The
Lin Du, Xiao-jiang Sun, Tang-jun Zhou, Yuan-chao Li, Chen Chen, Chang-qing Zhao, Kai Zhang, Jie Zhao   +7 more
doaj   +1 more source

Long Range Guided Wave Propagation Experimental Analysis in Overhead Power Line Cables under Different Axial Load Levels.

Journal of Physics: Conference Series, 2018
Over the past hundred years, overhead power line cables have been widely installed around the world. These cables are commonly exposed to adverse environmental conditions that can affect their structural integrity and over time, could lead to the complete failure of the structure. This research presents the use of guided waves for the inspection of the
Malo, S, Livadas, M, Tan, S-M, Kanfoud, J, Gan, T-H, Mares, C   +5 more
openaire   +2 more sources

Influence of duration and frequency of load application on the stress-strain state of the track

Вестник Научно-исследовательского института железнодорожного транспорта, 2018
. In 2014–2016 on the Kovdor—Pinozero section of Oktyabrskaya Railway tests were carried out on the impact of cars with axial loads of 245.3 and 264.9 kN on the track in comparison with standard cars with an axial load of 230.5 kN.
M. M. Zheleznov, V. O. Pevzner, V. P. Solov’ev, A. V. Anisin, I. M. Anisina, S. S. Nadezhin, I. V. Tret’yakov   +6 more
doaj   +1 more source

Experimental Study on the Negative Skin Friction of the Pile Group Induced by Rising and Lowering the Groundwater Level

Advances in Civil Engineering, 2021
Negative skin friction (NSF) has been one of the important factors in the design of pile foundation; especially, the influence of water level on the pile negative skin friction should be paid attention. In this paper, a series of model tests were carried
Yu Zhang, Li-Pei Zhou, Ming-Yuan Wang, Xuanming Ding, Chenglong Wang   +4 more
doaj   +1 more source

Analysis of Vibration Characteristics of Angular Contact Ball Bearings in Aviation Engines Under Changing Conditions

Aerospace
This paper addresses the vibration characteristics of angular contact ball bearings in aircraft engines under variable load conditions. Based on multibody dynamics theory, a dynamic model of the bearing was established.
Yanfang Dong, Zibo Yan, Jianyong Sun, Wei Yu, Hai Zhang, Wenbo Zhou, Jihao Jin   +6 more
doaj   +1 more source