Results 21 to 30 of about 55,438 (275)

Influence of the Amount of Steel Fibers on Fracture Energy and Drying Shrinkage of HPFRCC

open access: yesAdvances in Materials Science and Engineering, 2020
The fracture energy of the high-performance fiber-reinforced cement-based composite (HPFRCC) can be modified within wide limits by the variation of the amount of steel fibers added to the fresh mix.
Weina Guo   +4 more
doaj   +1 more source

An experimental study of self-sensing concrete enhanced with multi-wall carbon nanotubes in wedge splitting test and DIC

open access: yes, 2020
Concrete is the worldwide most utilized construction material because of its very good performance, forming ability, long-term durability, and low costs. Concrete is a brittle material prone to cracking.
J. Suchorzewski, M. Prieto, U. Mueller
semanticscholar   +1 more source

Coniform-shape tool for splitting of wooden logs

open access: yesResearch in Agricultural Engineering, 2015
The article deals with design of a coniform tool with rotary motion for splitting of logs. The tool is proposed using a fracture mechanics theory. The approach of energy balance during crack growth in a split wood log is applied for construction design ...
F. Bodnár, M. Minárik
doaj   +1 more source

Wedge splitting test for a steel–concrete interface

open access: yesEngineering Fracture Mechanics, 2005
Abstract This paper presents a test method designated for the determination of the stress–crack opening relationship of a steel–concrete interface. The method is based on the well known wedge splitting test (WST), and it is illustrated how to obtain the stress–crack opening relationship through an inverse analysis.
Rasmus Walter   +3 more
openaire   +2 more sources

Investigation of different discrete modeling strategies to mimic microstructural aspects that influence the fracture energy of refractory materials

open access: yesOpen Ceramics, 2022
The mismatch between the coefficient of thermal expansion of the constituents within refractory ceramics could advantageously be used to tune the fracturing behavior by inducing numerous microcracks within the microstructure.
Farid Asadi   +5 more
doaj   +1 more source

Fracture energy evaluation of refractories in wedge splitting tests from notch opening displacements [PDF]

open access: yesJournal of the European Ceramic Society, 2021
Abstract The work of fracture of refractories is commonly calculated from crack mouth opening displacements (CMODs) in wedge splitting tests (WSTs). This paper proposes a methodology for estimating the fracture energy from notch opening displacement (NOD) measurements, which is useful for setups where CMOD is not accessible.
R. Vargas, R.B. Canto, F. Hild
openaire   +1 more source

Multi-Window Setup for Thermomechanical Experiments Assisted by DIC up to 900°C [PDF]

open access: yesMaterials Research
Mechanical properties may drastically change with temperature, which is crucial to characterize materials in environments as similar as possible to their desired application.
Rafael Vargas   +6 more
doaj   +1 more source

Characterization of the fracture mechanisms with miniaturized wedge splitting test

open access: yesWuhan symposium on refractories, 2019
Characterization of the fracture mechanisms with miniaturized wedge splitting ...
NGUYEN Thanh Hung   +3 more
openaire   +2 more sources

Combined damaged elasticity and creep modeling of ceramics with wedge splitting tests

open access: yesCeramics International, 2021
Abstract During the crack propagation in common refractory ceramics at high temperatures, creep may occur in the wake of a process zone and in front of a crack tip. To account for this phenomenon, an integrated material constitutive model was developed by combining the mechanical behavior following isotropic damaged elasticity concept and Norton ...
Samadi, S., Jin, S., Harmuth, H.
openaire   +1 more source

On the calibration of cohesive parameters for refractories from notch opening displacements in wedge splitting tests [PDF]

open access: yesJournal of the European Ceramic Society, 2021
Abstract Cohesive elements are commonly used to describe crack propagation in heterogeneous materials with toughening mechanisms. This work aims to provide a guideline on how these fracture parameters can be calibrated using notch opening displacements (NODs) measured via digital image correlation and force data from wedge splitting tests (WSTs ...
R. Vargas, R.B. Canto, F. Hild
openaire   +1 more source

Home - About - Disclaimer - Privacy