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Bifurcation approach

Hardening effects on strain localization predictions in porous ductile materials using the bifurcation approach

Hardening effects on strain localization predictions in porous ductile materials using the bifurcation approach

... bifurcation approach. Both the GTN constitutive equations and the Rice bifurcation criterion are implemented into the finite element (FE) code ABAQUS/Standard within the framework of large plastic ...

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Hardening effects on strain localization predictions in porous ductile materials using the bifurcation approach

Hardening effects on strain localization predictions in porous ductile materials using the bifurcation approach

... bifurcation approach. Both the GTN constitutive equations and the Rice bifurcation criterion are implemented into the finite element (FE) code ABAQUS/Standard within the framework of large plastic ...

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Prediction of forming limits for porous materials using void-size dependent model and bifurcation approach

Prediction of forming limits for porous materials using void-size dependent model and bifurcation approach

... Recall that the Dormieux and Kondo [22] model, which is an extension of the original Gurson model, has been developed by performing a limit analysis for a spherical void inside a spherical RVE, and by considering a ...

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Localized necking predictions based on rate-independent self-consistent polycrystal plasticity: Bifurcation analysis versus imperfection approach

Localized necking predictions based on rate-independent self-consistent polycrystal plasticity: Bifurcation analysis versus imperfection approach

... on bifurcation theory ( Rice, 1976 ). With this approach, the localization phenomenon is viewed as a consequence of instability in the constitutive description of uniform ...the bifurcation ...

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Strain localization analysis for planar polycrystals based on bifurcation theory

Strain localization analysis for planar polycrystals based on bifurcation theory

... self-consistent approach to derive the overall behavior of two-dimensional FCC polycrystalline ...the bifurcation approach (see, ...the bifurcation approach to predict the oc- currence ...

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Localized necking predictions based on rate-independent self-consistent polycrystal plasticity: Bifurcation analysis versus imperfection approach

Localized necking predictions based on rate-independent self-consistent polycrystal plasticity: Bifurcation analysis versus imperfection approach

... on bifurcation theory ( Rice, 1976 ). With this approach, the localization phenomenon is viewed as a consequence of instability in the constitutive description of uniform ...the bifurcation ...

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Automatic Bifurcation Detection in Coronary X-Ray Angiographies

Automatic Bifurcation Detection in Coronary X-Ray Angiographies

... novel bifurcation detector named Histogram of Eigenvectors (HOE) is proposed by analogy to the Histogram of Gradient (HOG) feature ...for bifurcation detection in 3D vascular images ...that ...

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en fr Canard-induced loss of stability across a homoclinic bifurcation Perte de stabilité induite par des solutions canards au travers d'une bifurcation homocline

... the bifurcation value of the parameter µ using the tra- ditional approach to cycle explosion based on ...this approach could be adapted because we have in the integrable case an explicit equation for ...

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Noisy zigzag transition, fluctuations, and thermal bifurcation threshold

Noisy zigzag transition, fluctuations, and thermal bifurcation threshold

... With negligible thermal noise, the zigzag transition is a supercritical pitchfork bifurcation, which can thus be described in the framework of the Landau theory of second order phase transition. In this formalism, ...

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Space-induced bifurcation in repression-based transcriptional circuits

Space-induced bifurcation in repression-based transcriptional circuits

... In a qualitative way, this is a similar phenomenon to labels a −c in Figure 5A: when the spatial range is large either because the degradation rate is low or the diffusion coefficient l[r] ...

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Bifurcation analysis and control of a fighter aircraft

Bifurcation analysis and control of a fighter aircraft

... Thus, based on this nonlinear but simple model, this thesis presents a bifurcation analysis of the longitudinal and lateral dynamics of a fighter aircraftb. Some stra[r] ...

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Stability analysis of a noise-induced Hopf bifurcation

Stability analysis of a noise-induced Hopf bifurcation

... the bifurcation For a given value of the damping rate α, let us choose the noise strength ∆ such that 0 < ∆ − ∆ c (α) ≪ ...the bifurcation threshold and the Lyapunov exponent is slightly positive: 0 < ...

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Subcritical dynamo bifurcation in the Taylor Green flow

Subcritical dynamo bifurcation in the Taylor Green flow

... We report direct numerical simulations of dynamo generation for flow generated using a Taylor- Green forcing. We find that the bifurcation is subcritical, and show its bifurcation diagram. We connect the ...

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L'art de la bifurcation : dichotomie, mythomanie et uchronie dans l'œuvre d'Emmanuel Carrère

L'art de la bifurcation : dichotomie, mythomanie et uchronie dans l'œuvre d'Emmanuel Carrère

... principalement en ce qui concerne la maladie de sa mère.. Mais [avec le temps] il est clair que de latente sa mythomanie est devenue évidente et maligne 6 \. Jamais sa famill[r] ...

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Percutaneous coronary intervention of bifurcation lesions: state-of-the-art. Insights from the second meeting of the European Bifurcation Club.

Percutaneous coronary intervention of bifurcation lesions: state-of-the-art. Insights from the second meeting of the European Bifurcation Club.

... Technique One of the problem encountered in bifurcation stenting is plaque shift and carena shifting leading to SB stenosis and sometimes occlusion. There is therefore some arguments to predilate both main and ...

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Bifurcation biographique au cœur de la dynamique des parcours d'entrée dans la vie professionnelle

Bifurcation biographique au cœur de la dynamique des parcours d'entrée dans la vie professionnelle

... nombreux en France), les déménagements et migrations (plus souvent en France), et enfin les loisirs (dont la part est plus importante en Argentine). L’analyse temporelle exploratoire de ces données repose sur l’idée que ...

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Performance and Robustness of Nonlinear Systems Using Bifurcation Analysis

Performance and Robustness of Nonlinear Systems Using Bifurcation Analysis

... applications, bifurcation analysis was still limited to reduced models and academic case ...bifurcations, bifurcation analysis for design purposes also remained ...of bifurcation curves in the ...

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Homoclinic bifurcation in Morse-Novikov theory a doubling phenomenon

Homoclinic bifurcation in Morse-Novikov theory a doubling phenomenon

... Case (b.2). Accumulation is as right above. One derives that λ − (γ) = (1 − g) · [γ] and λ + (γ) = [γ]. The desired formula is still satisfied. The proof of Theorem 3.8 is now complete since only one L is involved.  ...

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Imperfect supercritical bifurcation in a three-dimensional turbulent wake

Imperfect supercritical bifurcation in a three-dimensional turbulent wake

... tion of the free boundary layers is accompanied by the occurrence of asymmetric wake flow states [3, 4] produc- ing a non zero mean lift. They are commonly called one bubble and two bubbles transitions corresponding ...

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Elastoplastic bifurcation and collapse of axially loaded cylindrical shells

Elastoplastic bifurcation and collapse of axially loaded cylindrical shells

... numerical approach by the experimental results obtained by Batterman, Lee, Horton and Johnson in the ...possible bifurcation towards a non-axisymmetric ...a bifurcation point just before the maximum ...

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