Results 21 to 30 of about 31,583 (288)
Shock and Vibration, 2018 A novel hybrid image processing method is proposed to obtain the crack tip location, crack propagation path, displacement, strain fields, and plastic zone size of crack tip region under high-frequency resonant loading in this paper.
Hongli Gao +4 more
doaj +1 more source
The effect of grain size on the fatigue overload behaviour of nickel
Materials & Design, 2020 The fatigue overload behaviours of coarse grain (~30 μm), ultrafine grain (360 nm) and nanocrystalline (~30 nm) Ni are compared under constant amplitude loading at R = 0.1 after a 100% overload. Synchrotron X-ray diffraction is applied to map the elastic
Wen Zhang +6 more
doaj +1 more source
Some experimental observations of crack-tip mechanics with displacement data [PDF]
, 2015 Estudio de la mecánica en el vértice de la grieta mediante datos de desplazamiento.In the past two decades, crack-tip mechanics has been increasingly studied with full-field techniques.
Lopez-Crespo, Pablo +3 more
core +4 more sources
Identification and prediction of mixed-mode fatigue crack path in high strength low Alloy steel [PDF]
, 2018 The trajectory of fatigue crack growth is influenced by many parameters and can be irregular due to changes in stress distribution or in material properties as the crack progresses.
De Waele, Wim +3 more
core +1 more source
Journal of Mechanical Engineering, 2015 The finite element method (FEM) is developed for coupled thermoelastic crack problems if material properties are continuously varying. The weak form is utilized to derive the FEM equations. In conventional fracture theories the state of stress and strain
Repka M. +3 more
doaj +1 more source
Anti – plane crack emanating from the interface in a bounded smart PEMO- elastic structure
International Journal of Applied Mechanics and Engineering, 2013 The magnetoelectroelastic analysis of two bonded dissimilar piezo-electro-magneto-elastic ceramics with a crack perpendicular to and terminating at the interface is made.
B. Rogowski
doaj +1 more source
Experimental Analysis of Displacement Fields around a Crack Tip in Polymers.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A, 1997 Moire interferometry was utilized to determine the displacement fields around a crack tip in single-edge-cracked tensile PMMA and PA6/PPE/SBS alloy specimens. Vertical displacement ν was expressed as a function of the distance γ and the angle θ from a crack tip, and compared with the approximate solution of linear elastic fracture mechanics to study ...
Kazuo ARAKAWA, Kiyoshi TAKAHASHI
openaire +2 more sources
Computing stress intensity factors for curvilinear cracks [PDF]
, 2015 The use of the interaction integral to compute stress intensity factors around a crack tip requires selecting an auxiliary field and a material variation field.
Buscaglia +34 more
core +1 more source
Journal of Materials Research and TechnologyThe evolution of residual stresses (RS) at a crack tip and associated changes in crack shielding effects during fatigue crack growth (FCG) has a first order effect on the fatigue life of welded joints.
Zhe Zhang +3 more
doaj +1 more source
Autonomy and Singularity in Dynamic Fracture
, 2010 The recently developed weakly nonlinear theory of dynamic fracture predicts $1/r$ corrections to the standard asymptotic linear elastic $1/\sqrt{r}$ displacement-gradients, where $r$ is measured from the tip of a tensile crack.
Eran Bouchbinder +3 more
core +1 more source