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

