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Efficient and accurate approach for powder compaction problems
(2003-02)
Article.
Accés obert
Article.
Accés obert
In this paper, a new approach for powder cold compaction simulations is presented. A density-dependent plastic model within the framework of finite strain multiplicative hyperelastoplasticity is used to describe the highly ...
Modeling, with a unified level-set representation, of the expansion of a hollow in the ground under different physical phenomena
(2010)
Article.
Accés obert
Article.
Accés obert
This paper builds on the flexibility of the level-set representation to model in a unified manner the expansion of a hollow in the ground under different physical phenomena. In particular, the dissolving action of a flow ...
Interaction of He and He-V clusters with self-interstitials and dislocations defects in bcc Fe
(2015-03-01)
Article.
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Article.
Accés obert
The understanding of helium effects in synergy with radiation damage is crucial for the development of structural steels for fusion applications. Recent investigations in ultra-pure iron, taken as a basic model, have shown ...
A low dimensional surrogate model for a fast estimation of strain in the thrombus during a thrombectomy procedure
(Elsevier, 2023-01-01)
Article.
Accés restringit per política de l'editorial
Article.
Accés restringit per política de l'editorial
Background Intra-arterial thrombectomy is the main treatment for acute ischemic stroke due to large vessel occlusions and can consist in mechanically removing the thrombus with a stent-retriever. A cause of failure of the ...
Topological features dictate the mechanics of the mammalian brains
(2020-12-01)
Article.
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Article.
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Understanding brain mechanics is crucial in the study of pathologies involving brain deformations such as tumor, strokes, or in traumatic brain injury. Apart from the intrinsic mechanical properties of the brain tissue, ...
Modeling mixing in stratified heterogeneous media: the role of water velocity discretization in phase space formulation
(2022-08-11)
Article.
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Article.
Accés obert
Modeling solute transport in heterogeneous porous media faces two challenges: scale dependence of dispersion and reproducing mixing separately from spreading. Both are crucial since real applications may require km scales ...
Fast r-adaptivity for multiple queries of heterogeneous stochastic material fields
(2015-10-01)
Article.
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Article.
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We present an r-adaptivity approach for boundary value problems with randomly fluctuating material parameters solved through the Monte Carlo or stochastic collocation methods. This approach tailors a specific mesh for each ...
Mechanical compartmentalization of the intestinal organoid enables crypt folding and collective cell migration
(2021-06-21)
Article.
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Article.
Accés obert
Intestinal organoids capture essential features of the intestinal epithelium such as crypt folding, cellular compartmentalization and collective movements. Each of these processes and their coordination require patterned ...
Constructive and destructive interplay between piezoelectricity and flexoelectricity in flexural sensors and actuators
(2015)
Article.
Accés obert
Article.
Accés obert
Flexoelectricity is an electromechanical effect coupling polarization to strain gradients. It fundamentally differs from piezoelectricity because of its size-dependence and symmetry. Flexoelectricity is generally perceived ...
Fully coupled numerical model of actin treadmilling in the lamellipodium of the cell
(John Wiley & sons, 2018-12)
Article.
Accés obert
Article.
Accés obert
Cells rely on an interplay of subcellular elements for motility and migration. Certain regions of motile cells, such as the lamellipodium, are made of a complex mixture of actin monomers and filaments, which polymerize at ...