Results 11 to 20 of about 31,900 (281)
Nihon Kikai Gakkai ronbunshu, 2016 Crack opening displacement around a mode I surface crack tip was measured by digital image correlation method to determine the stress intensity factor and the effective stress intensity factor range.
Yuichi ONO +2 more
doaj +1 more source
Open Engineering, 2022 This article presents the results of analytical and numerical research focused on the numerical determination of selected fracture mechanics parameters for beams containing a crack in the state of four-point bending with the dominance of a plane strain ...
Graba Marcin
doaj +1 more source
Study of Crack Closure Effect of Hull Plate under Low Cycle Fatigue
Journal of Marine Science and Engineering, 2022 The crack closure phenomenon significantly influences low cycle fatigue (LCF) crack growth. The crack closure theory deems that a crack can grow only when the applied load is greater than the fatigue crack opening and closing loads.
Qin Dong, Mengyuan Rong, Geng Xu
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
Determining mode I cohesive law of Pinus pinaster by coupling double cantilever beam test with digital image correlation [PDF]
Fracture and Structural Integrity, 2015 The direct identification of the cohesive law in pure mode I of Pinus pinaster is addressed. The approach couples the double cantilever beam (DCB) test with digital image correlation (DIC).
J. Xavier +3 more
doaj +1 more source
Effect of numerical parameters on plastic CTOD [PDF]
Fracture and Structural Integrity, 2017 Fatigue crack growth (FCG) is associated with irreversible and non-linear processes happening at the crack tip. This explains different problems observed in the use of da/dN-?K curves, namely the inability to explain stress ratio and load history effects.
F.V. Antunes +3 more
doaj +2 more sources
Modelling of Crack Growth Using a New Fracture Criteria Based Peridynamics [PDF]
Journal of Applied and Computational Mechanics, 2019 Peridynamics (PD) is a nonlocal continuum theory based on integro-differential equations without spatial derivatives. The elongation fracture criterion is implicitly incorporated in the PD theory, and fracture is a natural outcome of the simulation.
Jinhai Zhao
doaj +1 more source
Stress Intensity Factor calculation from displacement fields [PDF]
Fracture and Structural Integrity, 2017 In the last two decades, visual image techniques such as Digital Image Correlation (DIC) enabled to experimentally determine the crack tip displacement and strain fields at small scales. The displacements are tracked during loading, and parameters as the
S. Beretta, L. Patriarca, S. Rabbolini
doaj +3 more sources
Mode I Fracture Toughness of Tangential Moso Bamboo
BioResources, 2014 This paper discusses moso bamboo (Phyllostachys pubescens) with initial crack formation by a three-point bending (SENB) method. The corrected indentation load-displacement curve (ISO 13586-2000) and the crack opening displacement in determining the crack
Minmin Xu +6 more
doaj +1 more source
Comparative study between crack tip opening displacement techniques by statistical analysis [PDF]
Tecnologia em Metalurgia, Materiais e Mineração, 2021 Standardized tests may not always achieve all their analytical objectives. Particularly to structural integrity, where a reproduction of the practical occurrences of the industry is desired, new techniques are being developed. Therefore, this work aims at evaluating fracture toughness in tensile armour through four measurement methodologies (standard ...
Schmidt, Matheus Lothar +3 more
openaire +2 more sources