Results 1 to 10 of about 1,388,091 (188)

Assessment of Damage and Residual Load Capacity of the Normal and Retrofitted RC Columns against the Impact Loading [PDF]

open access: yesJournal of Rehabilitation in Civil Engineering, 2021
In the current study, the effect of the extreme lateral loading on the square and circular Reinforced Concrete (RC) columns with and without retrofitting was investigated.
Somayeh Mollaei   +2 more
doaj   +1 more source

Evaluation of Intermediate Reinforced Concrete Moment Frame Subjected to Truck Collision [PDF]

open access: yesJournal of Rehabilitation in Civil Engineering, 2022
In this study, the progressive collapse of reinforced concrete structures due to vehicle collision to the columns of the ground floor was modeled and examined. For this purpose, a four-story reinforced concrete building with the intermediate moment frame
Seyed Reza Siadati   +2 more
doaj   +1 more source

Blast Effects on Hyperloop’s Cylindrical Thin-Shell Structures

open access: yesMachines, 2023
Super-high-speed guided systems such as hyperloops and MagLev are highly at risk of cyber and physical threats from either natural or man-made hazards. This study thus adopts a nonlinear finite element method to investigate and analyse blast responses of
Sakdirat Kaewunruen   +2 more
doaj   +1 more source

Accelerometer-based prediction of ground reaction force in head-out water exercise with different exercise intensity countermovement jump

open access: yesBMC Sports Science, Medicine and Rehabilitation, 2022
Background Water jumping exercise is an alternative method to achieve maintenance of bone health and reduce exercise injuries. Clarifying the ground reaction force (GRF) of moderate and high cardiopulmonary exercise intensities for jumping movements can ...
Kuei-Yu Chien   +3 more
doaj   +1 more source

Breakage Characterization of Magnetite under Impact Loads and Cyclic Impact Loading [PDF]

open access: yesEnergies, 2020
A series of impact compression tests were conducted to study the breakage characteristics of magnetite, as well as the impact pressure on its strain rate and dynamic compressive strength. The dynamic mechanical properties and fragmentation size distribution of magnetite under diverse impact loads and cyclic impact were investigated, with fractal theory
Si, Liang, Cao, Yijun, Fan, Guixia
openaire   +2 more sources

Fracture Resistance of Zirconia Oral Implants In Vitro: A Systematic Review and Meta-Analysis [PDF]

open access: yes, 2020
Various protocols are available to preclinically assess the fracture resistance of zirconia oral implants. The objective of the present review was to determine the impact of different treatments (dynamic loading, hydrothermal aging) and implant features (
Bethke, Annalena   +6 more
core   +1 more source

Design and Analysis of Two Wheeler Leg Guard for Material and Shape Optimization [PDF]

open access: yesE3S Web of Conferences, 2023
The growing demand for high performance engine technology in the two-wheeler market segment has pushed the average speed of the motorcycle to a higher limit, which has already raised the danger of motorcycle accidents leading to serious knee and lower ...
Srikar M. Lalith Chandra   +3 more
doaj   +1 more source

Experimental and numerical investigation of hole and edge radius effect on collapse properties of cylindrical absorbers under axial impact loading [PDF]

open access: yesمجله مدل سازی در مهندسی, 2018
In this paper, the collapse properties of aluminum cylindrical tubes that hole or curvature is created on their edges or their mid is studied in experimental and numerical methods.
Ali Alavi Nia, Saber Chahardoli
doaj   +1 more source

The Effect of Rise Time in Dynamic Stress Intensity Factor for Impact Loading [PDF]

open access: yesمجله مدل سازی در مهندسی, 2015
Dynamic stress intensity factor determination on crack tip under impact loading is widely investigated. The history of impact loading in analytical researches is considered to be step function but experimental tests show that in impact loading, a small ...
Mohammad Damghani Nouri   +1 more
doaj   +1 more source

Experimental Study and Identification of a Dynamic ‎Deformation Model of Dry Clay at Strain Rates up to 2500 s-1‎ [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2022
The paper presents the results of an experimental study and numerical simulation of dynamic deformation of dry clay at strain rates of ~103 s-1. The main physical and mechanical characteristics of the clay were determined using the modified Split ...
Аleksandr Коnstantinov   +5 more
doaj   +1 more source

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