Results 51 to 60 of about 1,301,662 (202)

Design and Development of a Modular Ballistic Pendulum for High‐Impulse Measurement in Contact and Near‐Field Explosive Loading

Propellants, Explosives, Pyrotechnics, EarlyView.
ABSTRACT Measuring impulse from explosive charges in contact and near‐field configurations presents practical challenges due to wide variation in impulse magnitude. Ballistic pendula are widely used for impulse measurement, but many existing designs are limited to narrow operating envelopes or are poorly suited to repeated contact testing and tamped ...
R. Alford, R. Hazael, R. Critchley, L. Humphreys   +3 more
wiley   +1 more source

Effect of Steel Fibers on the Behavior of Over-Reinforced Beams Subjected to Pure Torsion

Civil Engineering Dimension, 2010
The improvement in torsional properties of reinforced concrete (RC) is becoming extremely important in the modern day constructions. Over the years the steel fiber reinforced concrete (SFRC) is being used for improving cracking characteristics of RC. The
Warnitchai P., Rama Seshu D., Gunneswara Rao T.D.   +2 more
doaj  

Experimental Study of Hollow RC Beams Strengthened by Steel Fiber under Pure Torsion

Journal of Engineering, 2022
This paper examines the effectiveness of pure torsional loads on hollow reinforced concrete high-strengthened beams. Engineers need to know how much twist a structural member generates when exposed to torsional loads to design it properly.
Mazin Diwan Abdullah, Hawraa S. Malik
doaj   +1 more source

Regression‐based models for the torsional stiffness reduction factor in reinforced concrete beams under combined torsion and shear

Structural Concrete, EarlyView.
Abstract This paper presents a regression‐based methodology to estimate the Torsional Stiffness Reduction Factor (TSRF) of reinforced concrete beams under combined torsion and shear. A numerical database of 6816 samples was generated using the Combined Action Softened Truss Model (CA‐STM) implemented in Python, considering design guidelines prescribed ...
Khrys K. S. Medeiros, Jordlly R. B. Silva, Bernardo Horowitz   +2 more
wiley   +1 more source

Strong ground motion and structural damage in the 2023 Kahramanmaraş earthquakes: A comparative case study of numerical predictions and field observations

Structural Concrete, EarlyView.
Abstract On February 6, 2023, southeastern Türkiye was struck by two catastrophic earthquakes (Mw: 7.7 and Mw: 7.6) along the East Anatolian Fault Zone, causing extensive structural failures and significant loss of life. This study evaluates the seismotectonic characteristics of the sequence, analyzes strong ground motion data against the Turkish ...
Saruhan Kartal, Yetis Bulent Sonmezer, Selcuk Bas   +2 more
wiley   +1 more source

Damping ratio of reinforced concrete walls under limited damage from shaking table test and data‐driven modeling

Structural Concrete, EarlyView.
Abstract Accurate estimation of the damping ratio is critical for evaluating floor response spectra and equipment seismic demands in nuclear power plant structures. This study investigates the elastic damping ratio of reinforced concrete walls under limited damage states through shaking table tests and data‐driven modeling.
Hyeon‐Keun Yang, Min‐Kyu Kim
wiley   +1 more source

REINFORCED AND PRESTRESSED CONCRETE HOLLOW BEAMS UNDER TORSION

Journal of Civil Engineering and Management, 2014
Recently a new rational theoretical model for beams under torsion has been proposed. This model, called Softened Membrane Model for Torsion (SMMT), is able to predict well the global behaviour of reinforced and prestressed concrete solid beams under torsion.
Bernardo, Luis F. A., Andrade, Jorge M. A., Pereira-De-Oliveira, Luiz A.   +2 more
openaire   +3 more sources

Localized tension characterization of reinforced concrete flexural members using surface bonded distributed fiber optic sensors

Structural Concrete, EarlyView.
Abstract Structural monitoring and assessment can be used to ensure the long‐term performance of structures and inform when maintenance is required by accounting for the degradation of material properties. A key force‐resisting mechanism in reinforced concrete that must be considered as part of an assessment and that can degrade over time is tension ...
Jacob Yager, Christina Anegg, Cody Somers, Joshua E. Woods, Neil A. Hoult, Evan C. Bentz, Dirk Schlicke   +6 more
wiley   +1 more source

TorchRef: an open‐source PyTorch framework for crystallographic refinement

Journal of Applied Crystallography, EarlyView.
TorchRef is an open‐source PyTorch‐based crystallographic refinement framework that exposes all refinable parameters to automatic differentiation, accelerates structure factor evaluation by about two orders of magnitude on a GPU and enables novel workflows such as direct refinement against amplitude differences in time‐resolved crystallography ...
Hans-Peter Seidel, Jörg Standfuss, Tobias Weinert   +2 more
wiley   +1 more source

Torsional Behavior of High Strength Concrete Members Strengthened by Mixed Steel Fibers

Journal of Engineering, 2021
Twelve mixing steel fibers-reinforced high strength concrete beams were experimentally tested under pure torsion to investigating the concrete member torsional behavior.
Jawad Kadhim Mures, Mazin Abdul Imam Ahmed, Aqeel Hatem Chkheiwer   +2 more
doaj   +1 more source