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141
Crack propagation mechanism and life prediction for very-high-cycle fatigue of a structural steel in different environmental medias
Published 2013-07-01“…Crack propagation mechanisms due to different crack driving forces are investigated in terms of fracture mechanics. A model is proposed to study the relationship between fatigue life, applied stress and material property in different environmental medias, which reflects the variation of fatigue life with the applied stress, grain size, inclusion size and material yield stress in high cycle and VHCF regimes. …”
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142
DAMAGE TOLERANCE EXPERIMENT AND ANALYSIS OF STIFFENED FUSELAGE PANEL WITH LONGITUDINAL CRACK
Published 2017-01-01“…The residual strength curves are calculated based on the linear elastic fracture mechanics by comparison of experimental results. …”
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143
Environmental effects on the reliability of an AISI 304 structure
Published 2019-10-01“…This work is based on the application of probabilistic fracture mechanics models to predict the reliability of pressure pipelines in nuclear power reactors. …”
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144
STUDY ON MACROSCOPIC AND MICROSCOPIC MECHANICAL BEHAVIOR OF SILICA REINFORCED SILICONE RUBBER COMPOSITES
Published 2018-01-01“…Then,based on micro-mechanics and fracture mechanics theories,and the fracture energy of interface between silica and silicone rubber was introduced to reflect the interfacial mechanical characteristics,then the quantity was deduced that could reflect the reinforced effect of different silica feature and different silica content,and the analytical expression of reinforced material properties with fracture energy and the silica volume fraction were respectively observed. …”
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145
Biaxial fatigue tests of notched specimens for AISI 304L stainless steel
Published 2016-07-01“…The notch fatigue limits for different hole diameters were compared with the predictions done with a microstructural fracture mechanics model.…”
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146
Fatigue Life Analysis of Harmonic Reducer Flexspline based on Cold Rolling Process
Published 2019-01-01“…According to the inhibitory effect of initial residual stress produced by cold rolling process on crack initiation and crack propagation,taking the cold rolling flexspline of harmonic reducer as the research object,the SWT method and fracture mechanics theory are used to carry out theoretical analysis of crack initiation life and crack propagation life of cold rolling flexspline respectively,and the verification of each other is carried out by using the simulation analysis of the fatigue analysis software nCode Design-Life. …”
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147
Study on the Crack Propagation Life of the High-speed Train Gear
Published 2017-01-01“…The crack propagation characteristic property of the high-speed train gears is researched,the location of crack initiation is determined by a statics analysis and building gear pair model in the ABAQUS software.A finite element model of helical gear pair with crack at tooth root is established by ABAQUS software,then the stress intensity factor of the different nodes of crack tip is calculated based on the theory of linear elastic fracture mechanics.Then,the way and the growth trajectory of the crack is studied,the propagation life of the crack at tooth root are obtained by calculation.Based on the obtained result,the influence of load magnitude and other factors on the crack propagation life is discussed.The study indicate that the crack expands slowly at first and then faster and faster,the influence of load magnitude on the crack propagation life is obvious.…”
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148
Natural Frequencies of a Cracked Beam Coupled with a Compressible Sloshing Fluid
Published 2004-01-01“…The crack has been represented by a mass-less rotational spring, the flexibility of which has been calculated using linear fracture mechanics. The coupled system is subject to undisturbed boundary condition at infinity in the fluid domain. …”
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149
Assessment of structural integrity of subsea wellhead system: analytical and numerical study
Published 2014-12-01“…The study is based on a Linear Elastic Fracture Mechanics (LEFM) approach.…”
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150
Prediction of Fatigue Crack Growth Rate and Stress Intensity Factors Using the Finite Element Method
Published 2022-01-01“…This study investigates crack growth and stress intensity factors via finite element methods in linear elastic fracture mechanics. The procedure involves estimating stress intensity factors (SIFs), crack trajectory, and fatigue life, using two different softwares in both two and three-dimensional analyses. …”
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151
Comparison of behaviour of laterally loaded round and squared timber bolted joints
Published 2016-12-01“…Load carrying capacity was determined according to the applicable standards and theories of fracture mechanics. The test results of laboratory tests were then compared with the results of theoretical calculations.…”
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152
Residual Life Calculation of Fatigue Crack Growth of Spinning Pulley
Published 2017-01-01“…The initial crack along the circumferential extension model of spinning pulley is established by using workbench based on the theory of linear elastic fracture mechanics,and the stress intensity factors of the crack front are calculated. …”
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153
INFLUENCE OF CLADDING ON CONSTRAINT EFFECT OF REACTOR PRESSURE VESSEL SUBJECTED TO PRESSURIZED THERMAL SHOCK
Published 2018-01-01“…The elastic-plastic fracture mechanics analysis of reactor pressure vessels with different cladding thickness（ h = 0 mm,4 mm and 8 mm） subjected to pressurized thermal shock（ PTS） transients was studied. …”
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154
Fatigue characterization of a crankshaft steel: Use and interaction of new models
Published 2015-12-01“…In this work, the fatigue behavior of a D38MSV5S steel, used for crankshafts in compact vehicles, is investigated according to two traditional ways of analysis, namely the stress based and the fracture mechanics based approaches, though using advanced design models: On the one side, a probabilistic Weibull regression S-N model is assessed for experimental results obtained from fatigue resonance tests. …”
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155
Pilot evaluation of a fracture process zone in a modified compact tension specimen by X-ray tomography
Published 2017-10-01“…The estimation of the zone is supported by the theory of linear elastic fracture mechanics (LEFM) that could be a limit case of quasi-brittle mechanics. …”
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156
Size effect on the fracture resistance of rough and frictional cracks
Published 2019-01-01“…Elastic fracture mechanics commonly defines the fracture resistance of brittle materials within an idealized picture of planar and traction-free cracks. …”
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157
Williams expansion-based approximation of the stress field in an Al 2024 body with a crack from optical measurements
Published 2017-06-01“…Crack tip stress tensor components are expressed using the linear elastic fracture mechanics (LEFM) theory in this work, more precisely via its multi-parameter formulation, i.e. by Williams power series (WPS). …”
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158
Critical applied stresses for a crack initiation from a sharp V-notch
Published 2014-09-01“…The classical approach of the linear elastic fracture mechanics (LELM) was generalized, because the stress singularity exponent differs from 0.5 in the studied case. …”
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159
The use of thermally expandable microcapsules for increasing the toughness and heal structural adhesives
Published 2013-04-01“…The experimental results were successfully cross-checked through a numerical analysis using the virtual crack closure technique (VCCT) based on linear elastic fracture mechanics (LEFM). The major conclusion is that fracture toughness of the modified adhesives increased as the mass fraction of the TEMs increased.…”
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160
Mesoscopic Fracture Model of Coarse Aggregate Interlocking Concrete
Published 2022-01-01“…Based on mesomechanics and fracture mechanics, this paper conducts theoretical simulations and experimental studies on the mechanical and fracture properties of coarse aggregate interlocking concrete through the theory of mesomechanics homogenization as well as compressive strength tests, flexural strength tests, axial compressive strength tests, elastic modulus tests, and fracture toughness tests. …”
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