Results 21 to 30 of about 31,598 (181)

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

On the equivalence of two deformation schemes in quantum field theory [PDF]

open access: yes, 2012
Two recent deformation schemes for quantum field theories on the two-dimensional Minkowski space, making use of deformed field operators and Longo-Witten endomorphisms, respectively, are shown to be equivalent.Comment: 14 pages, no figure.
A. Guichardet   +20 more
core   +3 more sources

Extraction of biological hydroxyapatite from tuna fish bone for biomedical applications [PDF]

open access: yes, 2020
Natural hydroxyapatite (HAp) is known for its common use in biomedical applications including in orthopaedic and implantation. HAp can be extracted from natural resources such as eggshells, fish bones and coral.
Abdullah, H.Z.   +6 more
core   +1 more source

Geometric modular action for disjoint intervals and boundary conformal field theory [PDF]

open access: yes, 2009
In suitable states, the modular group of local algebras associated with unions of disjoint intervals in chiral conformal quantum field theory acts geometrically.
Buchholz D.   +6 more
core   +3 more sources

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

Experimental Study on the Influence of Humidity on Double-K Fracture Toughness and Fracture Energy of Concrete under Water Environment

open access: yesBuildings, 2023
Saturated concrete is significantly different from dry concrete in fracture mechanical properties. Using the wedge-splitting tensile method to research the rule of change in moisture content, double-K fracture toughness and fracture energy of three ...
Guohui Zhang   +4 more
doaj   +1 more source

Experimental Study on Fracture Properties of Hydraulic Concrete with Different Crack-Depth Ratios Based on Acoustic Emission and DIC Techniques

open access: yesAdvances in Materials Science and Engineering, 2022
In order to study the fracture behavior of hydraulic concrete, wedge splitting tests are performed on notched cubic concrete specimens with different crack-depth ratios (0.3, 0.4, and 0.5).
Yingjie Ning   +4 more
doaj   +1 more source

Experimental Study on High-Energy Gas Fracturing Artificial Coal

open access: yesApplied Sciences, 2022
The low permeability of coal seams has always been the main bottleneck restricting coalbed gas drainage. To improve the permeability of a coal seam, a high-energy gas fracturing technology is proposed.
Junjun Li   +4 more
doaj   +1 more source

Analysis of wedge splitting test on refractory castable via integrated DIC [PDF]

open access: yesJournal of the European Ceramic Society, 2016
One of the key mechanical properties of refractories is their toughness. The latter can be evaluated via wedge splitting tests. One such test is analyzed herein with an integrated approach to digital image correlation. The position of the crack tip, stress intensity factors and T-stress are estimated on two faces of the tested sample made of a ...
Vargas, Rafael   +4 more
openaire   +1 more source

Analysis of accuracy of Williams series approximation of stress field in cracked body – influence of area of interest around crack-tip on multi-parameter regression performance [PDF]

open access: yesFracture and Structural Integrity, 2017
A study on the accuracy of an approximation of the stress field in a cracked body is presented. Crack-tip stress tensor is expressed using the linear elastic fracture mechanics (LEFM) theory in this work, more precisely via its multi-parameter ...
J. Sobek, P. Frantík, V. Veselý
doaj   +1 more source

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