Results 1 to 10 of about 15,549 (49)

Assessment of seismic vulnerability of RC frames at the end-of-row of buildings with floor-to-floor alignment using multi-strips analysis MSA [PDF]

open access: yesJES: Journal of Engineering Sciences, 2022
During earthquakes’ excitation, adjacent buildings start vibrating out of phase (in different directions) leading to collisions with each other causing severe damage in a phenomenon known as structural pounding.
Hossameldeen Mohamed, Ghada Elyamany
doaj   +1 more source

PICUS: A Pocket-Sized System for Simple and Fast Non-Destructive Evaluation of the Detachments in Ancient Artifacts

open access: yesApplied Sciences, 2021
An innovative, robust method has been developed, based on the use of a simple, compact, expressly designed device, named PICUS (the ‘woodpecker’ in ancient Latin), and inspired by the auscultation method carried out by the experts in the field of ...
Giosuè Caliano   +2 more
doaj   +1 more source

Dynamic Response of Fiber Reinforced Polymer Bar Reinforced Concrete Beams under Low Velocity Impact

open access: yesTaiyuan Ligong Daxue xuebao, 2021
To study the dynamic response characteristics of concrete beams with Fiber Reinforced Polymer Bars(FRP), the failure process, energy conversion, and dissipation of FRP beams without stirrups under different impact velocity, longitudinal reinforcement ...
Zhihong MA, Gang MA, Zhihua WANG
doaj   +1 more source

A Systematic Review of Dynamic Forces and Kinematic Indicators of Front and Roundhouse Kicks across Varied Conditions and Participant Experience

open access: yesSports, 2023
Impact force and maximum velocity are important indicators of kick efficiency. Therefore, this systematic review compared the front kick (FK) and roundhouse kick (RK), including their impact force, maximum velocity, angular velocity, and execution time ...
Michal Vagner   +4 more
doaj   +1 more source

Research on the Impact Force of Rockfall Impacting Sand Cushions with Different Shapes

open access: yesApplied Sciences, 2022
Shed structures are an important engineering method for mountain highways to resist rockfall impacts. Research on the rockfall impact response is very important to the design of rockfall disaster protection structures to shed cave structures.
Yu Zhang, Lingzhi Xie, Bo He, Peng Zhao
doaj   +1 more source

Dynamic Analysis of Full-Circle Swinging Hoisting Operation of a Large Revolving Offshore Crane Vessel under Different Wave Directions

open access: yesJournal of Marine Science and Engineering, 2023
Waves have an important influence on the motion performances of offshore crane vessels. The floating crane vessel in waves gives rise to the motion of the lifted object which is connected to the hoisting wire.
Dapeng Zhang   +3 more
doaj   +1 more source

Theoretical Prediction of Impact Force Acting on Derailment Containment Provisions (DCPs)

open access: yesApplied Sciences, 2023
This study proposes a theoretical method to estimate the impact force of Derailment Containment Provisions (DCPs) for the prevention of secondary collisions in the event of a train derailment.
In-Ho Song   +4 more
doaj   +1 more source

Nonlinear dynamic analysis of single-sided and single-mass crushing system under impact and vibration

open access: yesJournal of Hebei University of Science and Technology, 2017
To research and develop efficient vibrating type crusher, a single-sided dynamic model is established for the impact and vibration crushing system, and the differential equation of vibration is set up with Newton's law for dynamic analysis.
Suhuan NI, Xue YANG
doaj   +1 more source

Simulation on impact of liquid sloshing on baffles in liquid tankers

open access: yesYou-qi chuyun, 2022
The baffles of some road tankers for liquefied gas (hereinafter referred to as liquid tankers) are found to be cracked or fallen off during the regular inspection.
Wenhong BAO   +3 more
doaj   +1 more source

EFFECT OF VEHICLE QUALITY AND SPEED ON THE IMPACT CHARACTERISTICS OF AN OVERPASS BRIDGE PIER [PDF]

open access: yesCivil Engineering Journal, 2020
To study the impact of the mechanical characteristics of heavy trucks on piers under different masses and speeds, a new equivalent simplified model of heavy trucks is proposed in this paper.
Shijie Wang, Quansheng Sun, Jianxi Yang
doaj   +1 more source

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