Results 21 to 30 of about 3,593 (294)
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
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
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
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
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
The experimental investigation of deformation and opening displacement at a crack tip
International Journal of Pressure Vessels and Piping, 1994 Abstract The crack-tip opening displacement (CTOD) of four classes of steel with different yielding strength and hardening ability have been measured by indirect and direct methods to investigate the changes of CTOD with load and material properties.
Xuewei Sun, Weidi Cao, Xiaoping Lu
openaire +2 more sources
Quantifying crack tip displacement fields with DIC [PDF]
, 2010 Crack paths under both fatigue and fracture conditions are governed by the crack tip displacement field and the material deformation characteristics, including those influenced by metallurgical anisotropy. Experimental techniques such as thermoelasticity
Zanganehgheshlaghi, Mohammad +3 more
core +1 more source
Latin American Journal of Solids and StructuresThe purpose of this work is to investigate experimentally the effects of mixed-mode I/II loading on the fracture behavior of polymer mortars. Three point bend beam specimens with offcenter notch were used in plane-strain fracture toughness tests.
L.C.S. Nunes, J.M.L. Reis
doaj +1 more source
MATEC Web of Conferences, 2018 The influence of plate thickness on the fatigue crack propagation behavior was studied by using center-notched specimens which were cut from injection-molded plates of short carbon-fiber reinforced polyphenylene sulfide (PPS) at two fiber angles relative
Shimizu Kenichi +2 more
doaj +1 more source