• Aucun résultat trouvé

Non-local constitutive laws

Parametric identification of elastic-plastic constitutive laws using spherical indentation

Parametric identification of elastic-plastic constitutive laws using spherical indentation

... The cost function is then defined as the Euclidean norm of the difference vector: X><? = Y=><?Y ( 7 ) The identification is led by minimising the cost function using the Levenberg-Marquardt algorithm from the ...

9

An efficient and robust VUMAT implementation of elastoplastic constitutive laws in Abaqus/Explicit finite element code

An efficient and robust VUMAT implementation of elastoplastic constitutive laws in Abaqus/Explicit finite element code

... any local iterative algorithm [2, ...Cook constitutive flow law [4], presented in section 3, has been selected to be implemented into the Abaqus/Explicit code through both a VUHARD and a VUMAT ...

27

Critical roles of constitutive laws and numerical models in the design and development of Arctic offshore installations

Critical roles of constitutive laws and numerical models in the design and development of Arctic offshore installations

... structures; constitutive law; explicit numerical simulations; ANSYS; ...the constitutive law (rules for ice mechanics, strength, and its failure) and the numerical capability to solve a set of equations for ...

9

Crowd Dynamics through Non-Local Conservation Laws

Crowd Dynamics through Non-Local Conservation Laws

... among the equations is only due to the non-local terms η ∗ U and ϑ ∗ U. The above class of systems can model many physical phenomena such as sedimentation [3], one-dimensional vehicular traffic [4, 7], ...

10

Combining probabilistic and non-deterministic choice via weak distributive laws

Combining probabilistic and non-deterministic choice via weak distributive laws

... erset monad P to the category of convex algebras . Using the correspondence between weak distributive laws, weak liftings and weak extensions (see [ 11 ]), we know that the canonical weak distributive law 𝛿 : DP ⇒ ...

12

The Interventionist Account of Causation and Non-causal Association Laws

The Interventionist Account of Causation and Non-causal Association Laws

... causes electromagnetic radiation R. The reason is that there is a law of nature, according to which the rotation of an electric charge produces electromagnetic radiation, whereas there is no law according to which ...

21

Texture Segmentation via Non-local Non-parametric Active Contours

Texture Segmentation via Non-local Non-parametric Active Contours

... a local ho- mogeneity of the ...The non-local active contour method, re- cently introduced in [10, 11], also makes use of such a local homogeneity principle, but implements the variational ...

15

Discrimination of non-local correlations

Discrimination of non-local correlations

... given non-signaling box to the local ...the non-locality of Werner states. Since the non-locality problem is NP-hard, our work and its further refinements could provide alternative algorithms ...

22

Scaling laws in aeolian sand transport: Erodible versus non-erodible bed

Scaling laws in aeolian sand transport: Erodible versus non-erodible bed

... a non-erodible ...a non-erodible bed these quantities vary significantly with the air friction ...over non- erodible bed where the cubic Bagnold scaling ...

5

Modelling, identification and application of phenomenological constitutive laws over a large strain rate and temperature range

Modelling, identification and application of phenomenological constitutive laws over a large strain rate and temperature range

... thermo-viscoplastic constitutive models often applied to forging and machining processes is ...empirical constitutive models ...a constitutive equation is proposed by modifying the TANH model ( ...

21

Identification of material constitutive laws representative of machining conditions for two titanium alloys: Ti6Al4V and Ti555-3

Identification of material constitutive laws representative of machining conditions for two titanium alloys: Ti6Al4V and Ti555-3

... Determining a material constitutive law that is representative of the extreme conditions found in the cutting zone during machining operations is a very challenging problem. In this study, dynamic shear tests, ...

12

Non-local Regularization of Inverse Problems

Non-local Regularization of Inverse Problems

... a non-local energy computed from the blurry ...the non-local graph is estimated using an image with missing ...a non-local graph directly from the image with missing ...

11

Non-local Segmentation and Inpaiting

Non-local Segmentation and Inpaiting

... inpainting, non-local energy, level set function ...the local homogeneity, in contrast to the Chan-Vese approach. The local homogeneity property al- lows our model to capture regions with ...

5

Non-local multi-class traffic flow models

Non-local multi-class traffic flow models

... We prove the existence for small times of weak solutions for a class of non-local systems in one space dimension, arising in traffic modeling. We approximate the problem by a Godunov type numerical scheme ...

27

Bayesian Non Local Means-Based Speckle filtering

Bayesian Non Local Means-Based Speckle filtering

... In this paper, we introduce a new restoration scheme in the context of US imaging : a Non Local (NL) Means-based Speckle Filter. The NL means filter was earlier introduced by Buades et al. [11] for Gaussian ...

5

Transport électronique non local dans des structures hybrides supracondctrices

Transport électronique non local dans des structures hybrides supracondctrices

... Introduction Les structures hybrides supraconductrices multiterminales apportent une physique très riche non présente dans les structures à deux terminaux. Une des motivations pour les étudier est de pouvoir ob- ...

168

Le p-Laplacien non-local sur graphes: du discret au continu

Le p-Laplacien non-local sur graphes: du discret au continu

... More precisely, for networks on convergent graph sequences (simple and weighted graphs), we prove convergence and provide rate of convergence of solutions for the discrete models to the [r] ...

31

Le p-Laplacien non-local sur graphes: du discret au continu

Le p-Laplacien non-local sur graphes: du discret au continu

... p-Laplacien non-local, gouvernée par un noyau donné, a de très nombreuses applications pour modéliser les phénomènes de diffusion, notamment en traitement du signal et des images sur ...d’évolution ...

5

CONCENTRATION PHENOMENON IN SOME NON-LOCAL EQUATION

CONCENTRATION PHENOMENON IN SOME NON-LOCAL EQUATION

... that it vanishes on three of these four points. We observe a slow convergence of the numerical solution towards the approximation of a singular stationary measure containing a single Dirac mass. 1.3. Outline. The paper ...

20

Direct measurement of local constitutive relations, at the micrometre scale, in bulk metallic alloys

Direct measurement of local constitutive relations, at the micrometre scale, in bulk metallic alloys

... Processing of the raw data was necessary to couple the total and elastic strain fields. First, small elastic strains (of the order of 2  10 4 ) were observed at the initial state. Only strains associated with the ...

10

Show all 10000 documents...

Sujets connexes