Results 21 to 30 of about 6,826,918 (267)

Wedge splitting test for a steel–concrete interface

Engineering 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, Lennart Østergaard, John F. Olesen, Henrik Stang   +3 more
openaire   +2 more sources

Coniform-shape tool for splitting of wooden logs

Research 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

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

Open 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, Damien André, Sacha Emam, Pascal Doumalin, Imad Khlifi, Marc Huger   +5 more
doaj   +1 more source

Contact Pressure Measurement System in Cross Wedge Rolling [PDF]

, 2010
In the cross wedge rolling process (CWR), plastic deformation is geared by a driving torque transmitted by friction on die surface. Friction plays a role which has to be further identified in this metal forming process. The local contact pressure between
MANGIN, Philippe, LANGLOIS, Laurent, BIGOT, Régis   +2 more
core   +1 more source

Spectral Properties of Wedge Problems [PDF]

, 2012
This paper presents our recent results on the study of the scattering and diffraction of an incident plane wave by wedge structures. A review about the impenetrable wedge problem at skew incidence and about the penetrable wedge at normal incidence is ...
Vito Daniele, Guido Lombardi, Lombardi, Guido, Daniele, Vito   +3 more
core   +1 more source

Graz Reading Comprehension Test

, 2023
Der GraLeV ist ein Verfahren zur Messung des Leseverständnisses (auf Wort-, Satz- und Textebene) von Kindern der dritten und vierten Schulstufe. Er besteht aus 4 Subtests mit insgesamt 38 Itemsets. Der GraLeV weist eine interne Konsistenz von Cronbachs α
Riedl, S., Wohlhart, D., Paleczek, L., Seifert, S., Franz, A.   +4 more
core   +1 more source

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

Journal 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

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

Journal 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

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

Materials 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, Igor Paganotto Zago, Vinicius Fiocco Sciuti, Matheus Furlan, Ricardo Afonso Angélico, François Hild, Rodrigo Bresciani Canto   +6 more
doaj   +1 more source

Experimental study on hydraulic fracture behavior of concrete with wedge-splitting testing

Science and Engineering of Composite Materials, 2023
Abstract The aim of this paper is to investigate the water pressure effects on hydraulic fracture behavior of concrete with wedge-splitting testing under dynamic loading. Five waterproof strain gauges are stuck along the crack path to observe the fracture process during the experiments. Four silicon water pressure sensors successfully
Zhao Wenhu, Fang Tao, Chen Xiaocui, Sun Liguo   +3 more
openaire   +2 more sources