Results 21 to 30 of about 993,746 (310)

On the Evaluation of Prestress Loss in PRC Beams by Means of Dynamic Techniques

open access: yesInternational Journal of Concrete Structures and Materials, 2018
In the last few decades, prestressing techniques have been used to build very important structures and infrastructures. Since the serviceability and the safety of prestressed reinforced concrete (PRC) elements rely on the effective state of prestressing,
Marco Breccolotti
doaj   +1 more source

Analysis of cracking of low-alloy copper stretched at elevated temperature [PDF]

open access: yesFracture and Structural Integrity, 2016
This paper presents both mechanical and structural aspects of micro-cracking of CuNi2Si copper alloy in CNCS grade revealed during the static tensile test in the temperature range between 20ºC and 800ºC.
Wojciech Ozgowicz   +3 more
doaj   +1 more source

Reinforcement effect of anti-shear tunnels of Dagangshan right bank slope based on microseismic energy evolution

open access: yesYantu gongcheng xuebao, 2017
Microseismic monitoring technology has been widely used in rock mass engineering monitoring. There are still many problems in stability evaluation of rock mass engineering using the microseismic data.
ZHUANG Duan-yang 1, 2, TANG Chun-an 1, 2, LIANG Zheng-zhao 1, 2, MA Ke 2, 3
doaj   +1 more source

Fracture mechanics of fiber reinforced concrete: Experimental study of composition, geometry and hybridization of fibers [PDF]

open access: yesJournal of Structural and Construction Engineering, 2018
Using of polymeric fibers for reinforced concrete structures has significantly developed in recent years. Polymeric fibers start their contribution in the behavior of concrete members after cracking. In order to a careful investigation into post-cracking
Khaled Sanginabadi   +4 more
doaj   +1 more source

Signal-Based Acoustic Emission Clustering for Differentiation of Damage Sources in Corroding Reinforced Concrete Beams

open access: yesApplied Sciences, 2022
Corrosion in reinforced concrete (RC) structures is a major durability issue that requires attention in terms of monitoring, in order to assess the degraded condition and reduce financial costs for maintenance and repair.
Charlotte Van Steen, Els Verstrynge
doaj   +1 more source

Failure Mechanical Behavior of Australian Strathbogie Granite at High Temperatures: Insights from Particle Flow Modeling

open access: yesEnergies, 2017
Thermally induced damage has an important influence on rock mechanics and engineering, especially for high-level radioactive waste repositories, geological carbon storage, underground coal gasification, and hydrothermal systems.
Sheng-Qi Yang   +2 more
doaj   +1 more source

Effective properties of magnetoelectroelastic interfaces weakened by micro‐cracks [PDF]

open access: yesZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, 2017
AbstractThe effective properties of a microscopically damaged interface between two dissimilar magnetoelectroelastic materials are investigated using a micro‐statistical model. The interface is modeled as damaged by a periodic array of micro‐cracks. The micro‐cracks over a period interval of the interface are randomly generated and are either all (i ...
Wang, Xue, Ang, Whye Teong, Fan, Hui
openaire   +2 more sources

THERMAL CRACKING AND CORRESPONDING PERMEABILITY OF FUSHUN OIL SHALE; pp. 273–283 [PDF]

open access: yesOil Shale, 2011
In this work, thermal cracking inside an oil shale sample under different tem­peratures was tested using a micro-CT system. The critical temperature was determined at which sharp thermal cracking in the oil shale sample occurs.
ZHIQIN KANG   +3 more
doaj   +1 more source

Mixed Variational Formulations for Micro-cracked Continua in the Multifield Framework [PDF]

open access: yesAlgorithms, 2009
Within the framework of multifield continua, we move from the model of elastic microcracked body introduced in (Mariano, P.M. and Stazi, F.L., Strain localization in elastic microcracked bodies, Comp. Methods Appl. Mech. Engrg. 2001, 190, 5657–5677) and propose a few novel variational formulations of mixed type along with relevant mixed FEM ...
Matteo Bruggi, Paolo Venini
openaire   +3 more sources

Influence of TiN Inclusions and Segregation on the Delayed Cracking in NM450 Wear-Resistant Steel

open access: yesMetals, 2021
High-strength, wear-resistant steel often suffers from delayed cracking after flame cutting. Delayed cracking can lead to extremely harmful sudden brittle fracture; therefore, it is necessary to study the formation of delayed cracking in high-strength ...
Jingjing Liu   +4 more
doaj   +1 more source

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