Results 221 to 230 of about 37,565 (257)

Experimental determination of the fracture process zone in concrete

Cement and Concrete Research, 1983
Abstract The determination of the fracture process zone in concrete is a difficult experimental problem, because the resulting deformation is strongly localized and cannot be measured adequately by strain-gages or coarse moire techniques. The preliminary results of an experimental study of the strain field in notched and unnotched specimens indicate ...
Luigi Cedolin, Sandro Dei Poli, Ivo Iori
openaire   +1 more source

Fracture Process Zones in Polygranular Graphite in Bending

Key Engineering Materials, 2010
The formation of fracture process zones in polygranular reactor core moderator graphites subjected to four-point bending has been investigated. The three-dimensional digital image correlation technique has been combined with resistance strain gauge measurements to evaluate, both the localised and the global displacements during testing.
Nakhodchi, S, Hodgkins, A, Moskovic, R, Smith, DJ, Flewitt, PEJ   +4 more
openaire   +1 more source

Experimental methods for determining fracture process zone and fracture parameters

Engineering Fracture Mechanics, 1990
Abstract For quasi-brittle materials like concrete, rock and ceramic it is not possible to determine fracture toughness using laboratory-sized specimens and linear elastic fracture mechanics. This inapplicability of the conventional fracture mechanics is due to fracture process zone, R- curve type of behavior and precritical stable crack ...
openaire   +1 more source

A micromechanical model for the fracture process zone in ferroelectrics

Computational Materials Science, 2003
Abstract Piezoelectric and ferroelectric ceramics find an application as actuators, sensors or ultrasonic transducers in many fields of technology. Because of their brittleness, problems of strength and reliability have to be major subjects of investigation. In general, the ceramic material is exposed to combined electromechanical loading conditions.
Andreas Ricoeur, Meinhard Kuna
openaire   +1 more source

Strain Field Measurement in Fracture Process Zone

Journal of Engineering Mechanics, 1990
Center‐notched mortar plate specimens are loaded in tension. A multiple sensitivity vector holographic setup is developed to record several deformation stages during the stable crack propagation range. The three‐sensitivity vector setup enables the calculation of both crack opening displacements and strain fields around the crack trajectories. An image
A. Castro‐Montero, S. P. Shah, R. A. Miller   +2 more
openaire   +1 more source

Fracture process zone development during hydraulic fracturing

International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1993
J-I. Huang, K. Kim
openaire   +1 more source

Mesoscale modelling of size effect on the evolution of fracture process zone in concrete

Engineering Fracture Mechanics, 2021
Li Ge Wang, Yong Lu, Han-Mei Chen
exaly  

Modelling of the Fracture Process Zone of Concrete

Civil-Comp Proceedings, 2009
P. Grassl, M. Jirásek
openaire   +1 more source

The effect of fracture growth rate on fracture process zone development in quasi-brittle rock

Engineering Fracture Mechanics, 2021
Guangqing Zhang
exaly  

A novel methodology for characterizing fracture process zone evolution in Barre granite specimens under mode I loading

Theoretical and Applied Fracture Mechanics, 2023
Prasoon Garg, Ahmadreza Hedayat, Sana Zafar   +2 more
exaly