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161
EFFECT OF DIFFERENT STRUCTURAL PARAMETERS ON THE 7075ALUMINUM ALLOY LUG FATIGUE CRACK GROWTH LIFE
Published 2021-01-01“…Finally, The fatigue crack growth life of lug with different structural parameters was calculated by the Paris formula and fracture mechanics method. The results indicate that under the same stress, with the increase of taper angle, the fatigue crack growth life of the lug structure increases rapidly, and the bottom chamfer have little effect on it.…”
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162
Fatigue Crack Propagation Behavior of the 2195-T8 Aluminum-Lithium Alloy with a Precorroded Hole
Published 2022-01-01“…The characteristics of the crack growth have been analyzed via fracture mechanics by employing the finite element method (FEM). …”
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163
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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164
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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165
Numerical Calculation of Stress Intensity Factor of Tooth Root Crack in the High-speed EMU Gear
Published 2017-01-01“…The stress intensity factor of the different nodes of the initial crack tip of the tooth root is calculated by Abaqus based on the theory of linear elastic fracture mechanics,then by contrast,the type I stress intensity factor is dominant in the crack propagation. …”
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166
STUDY ON FATIGUE CRACK GROWTH RATE BASED ON ELASTIC-PLASTIC MECHANICS (MT)
Published 2023-01-01“…Definition based on the incremental theory of plasticity of J integral, combining the method of experiment and computer simulation, the method of crack propagation rate based on elastic-plastic mechanics is studied, the research shows that the crack growth rate curve obtained by the incremental plastic J integral is well described the material fracture mechanics performance characteristics, ΔJ integral as the crack growth driving force is verified the rationality of the parameters, in order to further research to explore mechanism of crack extension provides research foundation, a new model is proposed based on the 7N01 aluminum alloy test data, it takes into account the effect of stress ratio on crack propagation, and it is suitable for estimating fatigue life of materials in engineering practice.…”
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167
Modeling Approach for Predicting the Rate of Frequency Change of Notched Beam Exposed to Gaussian Random Excitation
Published 2014-01-01“…A new method has been developed where the damage accumulation rate is computed in the frequency domain using Linear Elastic Fracture Mechanics (LEFM), stress intensity, and the natural frequency. …”
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168
Study on Internal Fatigue Crack Initiation and Propagation Direction of Wind Turbine Gearbox Bearings
Published 2022-08-01“…Aiming at the problem of crack propagation，the method of stress superposition in the polar coordinate of the crack tip in fracture mechanics is used to clarify the influence of Hertz contact stress，residual stress，assembly interference pressure，etc. on the direction of crack propagation. …”
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169
Code development for the computational analysis of crack propagation in structures
Published 2020-07-01“…The Linear Elastic Fracture Mechanics (LEFM) theory has been applied to the code, and can predict, if the crack will propagate, the trajectory of the crack, as well as the number of cycle loads required for the propagation of the crack, for given boundary conditions and loads. …”
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170
X70 STEEL CRITICAL CTOD VALUE ANSYS CALCULATION
Published 2015-01-01“…Critical CTOD is important parameters in elastic-plastic fracture mechanics,the size directly reflects the material’s ability to resist cracking. …”
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171
Prediction and Analysis of Bending Fatigue Crack Growth Behavior of Spur Gear
Published 2016-01-01“…According to the linear elastic fracture mechanics, the linear equivalent of crack growth is carried out,by using K criterion to analyze whether the crack extend. …”
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172
Size effect on the fracture resistance of rough and frictional cracks
Published 2018-12-01“…Elastic fracture mechanics commonly defines the fracture resistance of brittle materials within an idealised picture of planar and traction free cracks. …”
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173
High-Strength Bolt Corrosion Fatigue Life Model and Application
Published 2014-01-01“…The corrosion fatigue performance of high-strength bolt was studied. Based on the fracture mechanics theory and the Gerberich-Chen formula, the high-strength bolt corrosion fracture crack model and the fatigue life model were established. …”
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174
Damage tolerance analysis of aircraft reinforced panels
Published 2011-04-01“…Therefore, using a fracture mechanics approach, several models (different by the geometry and the types of reinforcement constraints) were simulated with the finite element solver ABAQUS. …”
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175
Fatigue crack propagation in welded joints X70
Published 2018-09-01“…The concepts of fracture mechanics are used to analyze the harmfulness of defects in welded joints and the main part of fatigue life falls on the crack propagation. …”
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176
Crankshaft high cycle bending fatigue test method based on the combined extended Kalman filtering algorithm and different failure criterion parameters.
Published 2025-01-01“…First the intrinsic frequency of the system and the fatigue crack depth were chosen to be the failure criterion parameters based on the test regulation and the theory of fracture mechanics. Then the extended Kalman filtering method was adopted in predicting the remaining high cycle fatigue life of the crankshaft during the experiment process. …”
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177
Damage tolerance analysis of aircraft reinforced panels
Published 2013-04-01“…Therefore, using a fracture mechanics approach, several models (different by the geometry and the types of reinforcement constraints) were simulated with the finite element solver ABAQUS. …”
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178
The Fracture Characteristic of Three Collinear Cracks under True Triaxial Compression
Published 2014-01-01“…The mechanical behavior of multicracks under compression has become a very important project in the field of fracture mechanics and rock mechanics. In this paper, experimental and numerical studies on the fracture property of three collinear cracks under compression were implemented. …”
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179
Approximation of the crack-tip field in fatigue cracks in bridge steel specimens: DIC analysis of different constraint levels
Published 2019-07-01“…Linear elastic fracture mechanics (LEFM) theory in framework of multi-parameter formulation, i.e. postulated by Williams is used to determine of coefficients of Williams power series terms. …”
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180
Analysis of longitudinal cracked two-dimensional functionally graded beams exhibiting material non-linearity
Published 2017-07-01“…The analysis reveals that the material non-linearity has to be taken into account in fracture mechanics based safety design of structural members and components made of two-dimensional functionally graded materials.…”
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