[PDF] Top 20 Phase field material point method for brittle fracture
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Phase field material point method for brittle fracture
... coupled field problems, ...the method has been further extended to account for axisymmetric problems further generalizing its ...of material points that are moving within a fixed (Eulerian) ... See full document
47
Material point method for crack propagation in anisotropic media: a phase field approach
... novel phase field formulation implemented within a material point method setting is developed to address brittle fracture simulation in anisotropic ...i.e., phase ... See full document
42
A non-intrusive global/local approach applied to phase-field modeling of brittle fracture
... The phase-field simulation of fracture processes with legacy codes bears a number of advantages which fit perfectly within the framework of non-intrusive coupling approaches using pre-defined ‘fixed’ ... See full document
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A numerical assessment of phase-field models for brittle and cohesive fracture: Γ-Convergence and stress oscillations
... • A decreasing length scale parameter ℓ results in a higher peak force, Fig. 2. Fur- thermore, a smaller length scale parameter ℓ results in a more pronounced snap- back behaviour. Pham et al. (2011); Borden et al. ... See full document
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IMPLEMENTATION OF MODIFIED VIRTUAL INTERNAL BOND METHOD TO INVESTIGATE FRACTURE SIMULATIONS IN BRITTLE MATERIALS
... MVIB, material consists of material particles in microscopic this material particles bonded with each ...between material particles shown by the bond stiffness. when material particles ... See full document
6
Brittle to quasi-brittle transition and crack initiation precursors in crystals with structural Inhomogeneities
... model: material disorder, phase-field damage and crystal plasticity In this work, we use a phase field model for a thorough continuum simulation of elasti- city, plasticity and damage ... See full document
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A phase-field model for cohesive fracture
... a phase-field model for cohesive fracture is ...in phase-field approaches, the phase-field approach to brittle fracture is ...the phase-field ... See full document
21
Recent advancements on the phase field approach to brittle fracture for heterogeneous materials and structures
... to fracture for the prediction of complex crack patterns in heterogeneous materials and composite structures is herein proposed, as a result of the frontier research activities undertaken in the FP7 ERC Starting ... See full document
29
Phase-field models for brittle and cohesive fracture
... the weak form of the phase eld problem, with C the penalty weight and δ d (x n ) is the Dira funtion entred at Γ d . A rak set S was then dened, whih is a list of Gauss points where d = 1 . This approah has some ... See full document
15
Gradient damage vs phase-field approaches for fracture: Similarities and differences
... the phase-field approach to brittle fracture is given, and the different point of departure is ...fact, material parameters, and have to be calibrated to ...the ... See full document
24
A new calibration approach to Beremin model's parameters
... Beremin model parameters were initially calibrated against testing results from notched round bars. In 1992, Minami(Minami et al., 1992) proposed a calibration scheme that uses a maximum likelihood analysis of ... See full document
9
Fracture and Toughening of Brittle Structures with Designed Anisotropy
... First, I want to thank my advisers, Kathy Faber and Ravi Ravichandran, not only for their advice and assistance with this thesis work, but also for helping me grow as a researcher and scholar. I would also like to thank ... See full document
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What happens to fracture energy in brittle fracture? Revisiting the Griffith assumption
... Griffith fracture theory provides a simple explana- tion of the stress requirements for a crack to enlarge: a crack will propagate when the forces holding two sides of a po- tential crack together are exceeded by ... See full document
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Applicability of Advanced Design Method of Graphite Components by Microstructure-Based Brittle Fracture Model
... Moreover, the Weibull theory was also applied in the same stress gradient condition, and the prediction result is compared with the estimated strength by the micro[r] ... See full document
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The Influence of Corrosion Attack on Grey Cast Iron Brittle‑Fracture Behaviour and Its Impact on the Material Life Cycle
... characterizing brittle‑fracture in monography The Impact of Corrosion on the Life Cycle of Military Vehicles (Binar et ...test material leads to the decrease in the measured quantities describing the ... See full document
7
The Transferability of Brittle Fracture Toughness Characteristics
... macroscopic fracture behaviour of defected components in terms of local fracture ...local material parameters measurement using notched tensile specimens and some prediction of brittle ... See full document
8
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... A large number of cracks occur in concrete structure after projectile penetration. The study of crack distribution and propagation process is the basis of damage assessment, structural repair and high dynamic ... See full document
13
Computational modeling of brittle fracture under dynamic loading
... High fracture resistance of MIL composites is due to the substantially anisotropic structure of the multilayered composite and the necessity of the crack to be initiated in each intermetallic ... See full document
6
Effect of time factors on the mortality in brittle hip fracture
... The effect of operational delay on mortality has always been the focus of debate. It is believed in many studies that the operational delay will lead to the rise of 1-year mortality. But other studies find that ... See full document
5
Damage and dissipation mechanisms in the dynamic fracture of brittle materials: Velocity driven transition from nominally brittle to quasi-brittle
... limit beyond which experiments start to depart from theory. The understanding and modelling of the micro-branching instability hence yielded many recent theoretical efforts [13–22]. However, a number of puzzling ... See full document
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