Results 11 to 20 of about 6,671 (206)

Numerical analysis of Fracture behavior of CFRP Sheet–Strengthened notched Concrete Beams [PDF]

open access: yesJournal of Structural and Construction Engineering, 2020
The serviceability and safety of building and bridge structures may gradually degrade due to long term use, natural environmental deterioration, poor initial design and/or construction, increased design loads, extreme events such as earthquakes, and/or ...
monireh Sanghi   +3 more
doaj   +1 more source

Statistical and Practical Evaluation of the Mechanical and Fracture Properties of Steel Fibre Reinforced Concrete

open access: yesBuildings, 2022
The sustainability of the construction industry requires new perspectives on existing techniques. For example, fibre concrete has been an integral part of the construction industry for many years and its contribution to enhancing the properties and use ...
Kristýna Hrabová   +2 more
doaj   +1 more source

A Quasi-2D Exploration of Mixed-Mode Fracture Propagation in Concrete Semi-Circular Chevron-Notched Disks

open access: yesBuildings, 2023
Most semi-circular bend (SCB) tests on concrete have been conducted with a pre-crack with a straight-through tip, thereby undermining the determination of the tensile fracture toughness (KIc).
Xiaoqing Lu, Guanxi Yan
doaj   +1 more source

Load-cmod data analysis for crack closure [PDF]

open access: yesInternational Journal of Fracture, 1992
The use of load/crack-mouth-opening displacement (CMOD) records during fatigue cycling to estimate crack closure is evaluated by comparing load/CMOD values to benchmark crack opening data. Numerical differences between crack-opening stress values estimated by load/CMOD and the benchmark crack openings suggests that CMOD-estimated closure cannot ...
S. A. Seetharam, P. K. Dash
openaire   +1 more source

Influence of biochar additions on the fracture behavior of foamed concrete

open access: yesFracture and Structural Integrity, 2020
The present study concerns the experimental investigation of foamed concretes with 1600 kg/m3 density that incorporate biochar additions in the mix.
Devid Falliano   +7 more
doaj   +1 more source

SIF and CMOD for three-point bending beams with arbitrary span-to-width ratios by using analytical weight function method

open access: yesJournal of Aeronautical Materials, 2020
Stress intensity factors (SIF) and crack mouth opening displacements (CMOD) for three-point bending beams with arbitrary span-to-width ratios (S/W) were calculated by using the Wu-Carlsson analytical weight function for edge-cracked finite-width plate ...
TONG Dihua   +4 more
doaj   +1 more source

An Experimental Approach to Assess the Sensitivity of a Smart Concrete

open access: yesBuildings, 2023
Structural health monitoring of concrete infrastructure is a critical concern for timely repair and maintenance. This study provides an innovative approach utilizing smart concrete integrated with multi-walled carbon nanotubes (MWCNTs) to enhance ...
Shaban Shahzad   +3 more
doaj   +1 more source

Fracture characteristics of high-performance concrete using nano-silica

open access: yesMagazine of Civil Engineering, 2022
High-performance concrete (HPC) using nano-silica (NS) has higher mechanical properties and durability than conventional concrete. The highly active silica ultrafine particles have improved the performance of HPC significantly.
Ngo Van Thuc   +4 more
doaj   +1 more source

Determining the Mineral Admixture and Fiber on Mechanics and Fracture Properties of Concrete under Sulfate Attack

open access: yesJournal of Marine Science and Engineering, 2021
The concrete structure in the coastal area suffers from the combined erosion of sulfate and dry–wet cycles. In this study, in order to modify ordinary concrete, fly ash, slag powder, silica fume and polyester fiber are added separately.
Jin-jun Guo, Kun Wang, Cui-ge Qi
doaj   +1 more source

Fracture Mechanics Characterization of an AnisotropicGeomaterial [PDF]

open access: yes, 2012
Argillites are considered worldwide as potential host rock for high level radioactive waste given the low permeability and strong adsorption potential.
Barpi, Fabrizio   +4 more
core   +1 more source

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