Results 71 to 80 of about 31,412 (196)

Frictional shear cracks

open access: yes, 2002
We discuss crack propagation along the interface between two dissimilar materials. The crack edge separates two states of the interface, ``stick'' and ``slip''. In the slip region we assume that the shear stress is proportional to the sliding velocity, i.
Brener, Efim A., Marchenko, V. I.
core   +1 more source

Recent Milestones in Unraveling the Full-Field Structure of Dynamic Shear Cracks and Fault Ruptures in Real-Time: From Photoelasticity to Ultrahigh-Speed Digital Image Correlation [PDF]

open access: yes, 2020
The last few decades have seen great achievements in dynamic fracture mechanics. Yet, it was not possible to experimentally quantify the full-field behavior of dynamic fractures, until very recently.
Lapusta, N., Rosakis, A. J., Rubino, V.
core  

LCF and crack growth: recent results obtained by DIC

open access: yesMATEC Web of Conferences, 2018
Nowadays, several components for aerospace and energy applications (i.e., turbine disks, offshore pipelines, and combustor chambers) are designed following a safe-life approach in the low cycle fatigue (LCF) regime.
Patriarca Luca   +2 more
doaj   +1 more source

Fatigue crack growth in a unidirectional SCS-6/Ti-15-3 composite [PDF]

open access: yes
An investigation was conducted to characterize and model the fatigue crack growth (FCG) behavior of a SCS-6/Ti-15-3 metal matrix composite. Part of the study was conducted using a fatigue loading stage mounted inside a scanning electron microscope (SEM).
Ghosn, Louis   +2 more
core   +1 more source

Influence and evaluation of constraint on fracture toughness in pipeline research [PDF]

open access: yes, 2012
Accessing nowadays fossil fuel reserves requires a strain-based design approach. Within such design, the ductile tearing resistance is a key parameter in assessing the defect tolerance. To determine this tearing resistance, full scale (pressurized) tests
De Waele, Wim   +3 more
core  

Effects of microstructure on antiplane crack growth in couple-stress elastic materials [PDF]

open access: yes, 2010
The problem of a propagating rectilinear crack in an elastic solid with microstructures subject to remote classical KIII field is investigated in the present work. The material behavior is described by the indeterminate theory of couple stress elasticity
RADI, Enrico
core  

Size scaling of strength in thin film delamination

open access: yes, 2011
We investigate by numerical simulation the system size dependence of the shear delamination strength of thin elastic films. The films are connected to a rigid substrate by a disordered interface containing a pre-existing crack. The size dependence of the
Alava M J   +4 more
core   +1 more source

A J-INTEGRAL MEASUREMENT METHOD BASED ON DIGITAL IMAGE CORRELATION

open access: yesJixie qiangdu, 2018
J-integral is an important fracture parameter which quantitatively describes the stress and strain fields near a crack tip. Accurate and efficient measurement of J-integral is of great significance for the evaluation of crack stability and propagation in
JIANG Wei, JIANG XianFeng, HUANG YuLong
doaj  

Determination of dynamic fracture toughness using a new experimental technique

open access: yesEPJ Web of Conferences, 2015
In other studies dynamic fracture toughness has been measured using Charpy impact and modified Hopkinson Bar techniques. In this paper results will be shown for the measurement of fracture toughness using a new test geometry.
Cady Carl M.   +2 more
doaj   +1 more source

Phase-Field Model of Mode III Dynamic Fracture

open access: yes, 2001
We introduce a phenomenological continuum model for mode III dynamic fracture that is based on the phase-field methodology used extensively to model interfacial pattern formation.
A. Karma   +40 more
core   +1 more source

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