Results 11 to 20 of about 18,112 (283)

Experimental and Analytical Investigation of Fracture Characteristics of Steel Fiber-Reinforced Recycled Aggregate Concrete

open access: yesInternational Journal of Concrete Structures and Materials, 2023
Fracture parameters of fiber concrete (FC) are currently a hot research area. Fracture mechanics is the field of solid mechanics that helps to study the type and propagation of cracks in materials.
Ahmed M. Maglad   +5 more
doaj   +1 more source

Monitoring Methods of Crack Behavior in Hydraulic Concrete Structure Based on Crack Mouth Opening Displacement (CMOD) [PDF]

open access: yesThe Open Civil Engineering Journal, 2014
For the difficulty of applying classical fracture criteria to the actual hydraulic engineering and silulating the process of cracking by conditional FEM, in this paper, a new method of analyzing and monitoring crack behavior in hydraulic structures under the effect of Hydro-Mechanical (HM) interaction is studied by using the XFEM, in which crack mouth ...
Zhong-Yan Huo   +2 more
openaire   +1 more source

Fatigue growth rate of inclined surface cracks in aluminum and titanium alloys

open access: yesFracture and Structural Integrity, 2022
In this paper the fatigue crack growth tests were carried out on surface-crack tension (SCT) specimens, made of 7050 and Ti6Al4V alloys, with initial semi-elliptical surface cracks.
R.R. Yarullin, M.M. Yakovlev
doaj   +1 more source

Concrete Reinforced by Hybrid Mix of Short Fibers under Bending

open access: yesFibers, 2022
In the present study, the mechanical behavior of Fiber-Reinforced Concrete (FRC) beams was studied under bending until rupture. Each beam was reinforced with a hybrid mix of short fibers randomly distributed in its volume.
Vitalijs Lusis   +2 more
doaj   +1 more source

Numerical Model for Identification of Fiber-Reinforced Concrete Parameters from the Crack-Mouth Opening Displacement

open access: yes, 2023
Determining material parameters is crucial for understanding their physical properties, improving the design process, and optimizing costs. Due to the challenges of measuring parameters in fibre-reinforced concrete, numerical models and inverse analysis are employed for parameter identification.
Kozar, Ivica, Sulovsky, Tea
openaire   +1 more source

Characterization on crack propagation of nuclear graphite under three-point bending

open access: yesNuclear Materials and Energy, 2019
The fracture properties of graphite produced in China, named as CLG, were studied by performing three-point bending tests on center-notched beams. The load-deflection (P-δ) curves and load-crack mouth opening displacement (P-CMOD) curves of the beams in ...
Yuxiang Tang, Hongniao Chen
doaj   +1 more source

Influence of notch orientation on ductile tearing in SENT specimens [PDF]

open access: yes, 2014
There is a growing interest for the use of spiral welded pipes in strain based design related applications. Since the influence of the spiral weld on the plastic behaviour of the pipe is not yet fully understood, further research on this topic is ...
De Waele, Wim   +5 more
core   +1 more source

Vibrated concrete vs. self-compacting concrete: comparison of fracture mechanics properties [PDF]

open access: yes, 2014
This study focuses on the fracture mechanics aspect of self-compacting concrete, compared to vibrated concrete. The most commonly used experiments to investigate the toughness and cracking behaviour of concrete are the three-point bending test (3PBT) on ...
Boel, Veerle   +3 more
core   +1 more source

Fracture Energy Influence on the Behavior of Steel Fiber Reinforced Concrete (SFRC) Beam Using Finite Element Method [PDF]

open access: yesEngineering and Technology Journal, 2013
The principle aim of this research is concentrated on studying the effect of cracks and their propagations on the mechanical behavior of a steel fiber reinforced concrete (SFRC) beam.
Mehdi Ali Jawad Albayyati
doaj   +1 more source

Estimation of Crack Mouth Opening Displacement in Concrete Using Optical Fiber Sensors

open access: yesOptometry: Open Access, 2018
Concrete is a multi-phase composite material and used widely in construction industry because of high compressive strength and low cost. Its limited tensile strength makes it prone to cracking. Important parameters like characteristic length, fracture energy Gf critical crack width WC are used to understand cracks in concrete.
Sobha B   +3 more
openaire   +1 more source

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