Paul Hauseux

Paul Hauseux
University of Luxembourg · Computational mechanics

About

12
Publications
2,759
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172
Citations
Citations since 2016
12 Research Items
170 Citations
201620172018201920202021202201020304050
201620172018201920202021202201020304050
201620172018201920202021202201020304050
201620172018201920202021202201020304050

Publications

Publications (12)
Article
Full-text available
Understanding complex materials at different length scales requires reliably accounting for van der Waals (vdW) interactions, which stem from long-range electronic correlations. While the important role of many-body vdW interactions has been extensively documented for the stability of materials, much less is known about the coupling between vdW int...
Preprint
Understanding static and dynamic phenomena in complex materials at different length scales requires reliably accounting for van der Waals (vdW) interactions, which stem from long-range electronic correlations. While the important role of many-body vdW interactions has been extensively documented when it comes to the stability of materials, much les...
Article
Full-text available
The aim of this work is to characterize the mechanical parameters governing the in-plane behavior of human skin and, in particular, of a keloid-scar. We consider 2D hyperelastic bi-material model of a keloid and the surrounding healthy skin. The problem of finding the optimal model parameters that minimize the misfit between the model observations...
Article
Full-text available
Anomalous proximity effects have been observed in adhesive systems ranging from proteins, bacteria, and gecko feet suspended over semiconductor surfaces to interfaces between graphene and different substrate materials. In the latter case, long-range forces are evidenced by measurements of non-vanishing stress that extends up to micrometer separatio...
Article
Le travail proposé concerne la prédiction de la réponse numérique d'une structure biomécanique sou-mise à un état de chargement externe inconnu. La méthodologie s'appuie sur la modélisation de structures homogènes puis hétérogènes, telles que des tissus cutanés sains ou pathologiques accessibles expé-rimentalement et soumis à des conditions aux lim...
Article
Full-text available
La peau humaine se comporte comme une membrane élastique précontrainte. La présence de sites anatomiques favorables à l'apparition de certaines tumeurs, une chéloïde dans notre cas, alors que d'autres en sont systématiquement dépourvus atteste de l'importance de l'environnement mécanique du tissu. Par conséquent, une caractérisation de la peau avec...
Article
Full-text available
We present a simple open-source semi-intrusive computational method to propagate uncertainties through hyperelastic models of soft tissues. The proposed method is up to two orders of magnitude faster than the standard Monte Carlo method. The material model of interest can be altered by adjusting few lines of (FEniCS) code. The method is able to (1)...
Chapter
Dealing with brittle or quasi-brittle failure within a finite element (FE) context is a well-known problem and basically requires to implement new methods since the finite element method (FEM) has originally been thought for continuum media, i.e., without discontinuities. The models using traditional FEM and based on the linear fracture mechanics r...
Article
Full-text available
The Malliavin calculus is an extension of the classical calculus of variations from deterministic functions to stochastic processes. In this paper we aim to show in a practical and didactic way how to calculate the Malliavin derivative, the derivative of the expectation of a quantity of interest of a model with respect to its underlying stochastic...
Article
Full-text available
In this paper we demonstrate the ability of a derivative-driven Monte Carlo estimator to accelerate the propagation of uncertainty through two high-level non-linear finite element models. The use of derivative information amounts to a correction to the standard Monte Carlo estimation procedure that reduces the variance under certain conditions. We...
Article
A 3D numerical model with strong discontinuities implemented within the Enhanced Finite Element Method (E-FEM) is developed to address multi-cracking problems. Two failure criteria are proposed for two (tensile and shear) fracture kinematics; namely an anisotropic Mohr Coulomb criterion with sliding and an anisotropic principal strain criterion wit...

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