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41
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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42
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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43
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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44
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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45
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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46
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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47
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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48
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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49
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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50
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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51
A Mesoscopic Simulation for the Early-Age Shrinkage Cracking Process of High Performance Concrete in Bridge Engineering
Published 2017-01-01“…By combining this model with continuum mechanics, damage mechanics, and fracture mechanics, a relatively complete system for concrete mesoscopic mechanics analysis was established to simulate the process of early-age shrinkage cracking in HPC. …”
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52
Modelling and Investigation of the Dynamic Behavior of a Penny-Shaped Interface Crack in Piezoelectric Bimaterials
Published 2023-01-01“…The objective of this paper is to use the boundary conditions of the penny-shaped interface crack to study the dynamic propagation of the crack under the action of load, so as to provide some valuable implications for the fracture mechanics of the piezoelectric bimaterials and simulate the interface crack between piezoelectric bimaterials, it is necessary to establish a suitable model and give appropriate boundary conditions according to the actual situation. …”
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53
Modelling a Cracked Beam Structure Using the Finite Element Displacement Method
Published 2019-01-01“…Starting with a finite element model of cracked beam element, the equation of strain energy of a cracked beam element is formed by the displacement method combined with the linear fracture mechanics. Then, based on the finite element method, the dynamic model of the cracked beam structure is obtained. …”
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54
The Mechanical properties and statistical analysis of the Charpy impact test using the Weibull distribution in jute-polyester and glass-polyester composites
Published 2022-09-01“…By the Williams method based on the principle of linear elastic fracture mechanics, the impact toughness of the composites is deduced. …”
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55
Propagation pattern of cracks around a shale borehole via the cohesive element method
Published 2025-01-01“…Therefore, in combination with rock mechanics theory and fracture mechanics theory, the cohesive element method is adopted to establish a numerical model for differential crack propagation due to bottomhole pressure on the basis of the B-K fracture criterion. …”
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56
Application of a Cohesive Zone Model for Simulating Fatigue Crack Growth from Moderate to High ΔK Levels of Inconel 718
Published 2018-01-01“…In order to improve the limitation of fracture mechanics-based models, besides the predictions of the moderate fatigue crack growth rates at the Paris’ regime and the high fatigue crack growth rates at the high stress intensity factor ΔK levels, the present work is also aimed at simulating the material damage uniformly and examining the influence of the cohesive model parameters on fatigue crack growth systematically. …”
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57
Research on structural fatigue residual life of pitch bearing rings after pre-damage
Published 2025-01-01“…To this end, a finite element model of replacing the whole pitch bearing with a local one was proposed to investigate the structural fatigue remaining life of pitch bearings after corrosion of the raceways.MethodsA combined method of finite element software Ansys and three-dimensional fracture mechanics software Franc3D was adopted to simulate the corrosion pit by inserting a pre-damage at the location of the maximum equivalent stress in the bearing ring. …”
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58
Assessment of structural integrity of subsea wellhead system: analytical and numerical study
Published 2015-01-01“…The study is based on a Linear Elastic Fracture Mechanics (LEFM) approach.…”
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59
Research on structural fatigue residual life of pitch bearing rings after pre-damage
Published 2025-01-01“…To this end, a finite element model of replacing the whole pitch bearing with a local one was proposed to investigate the structural fatigue remaining life of pitch bearings after corrosion of the raceways.MethodsA combined method of finite element software Ansys and three-dimensional fracture mechanics software Franc3D was adopted to simulate the corrosion pit by inserting a pre-damage at the location of the maximum equivalent stress in the bearing ring. …”
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60
Ductile–Brittle Transition Temperature of Epoxy Asphalt Concrete of Steel Bridge Deck Pavement Based on Impact Toughness
Published 2023-01-01“…To solve the common low-temperature cracking problem of epoxy asphalt concrete pavement on the steel bridge deck, based on the principle of fracture mechanics and energy method, this paper puts forward the impact toughness as the evaluation index of crack resistance of epoxy asphalt concrete and verifies the feasibility of this index through theoretical analysis and experiment. …”
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