Publications associées à Seashell

Diagenetic isotope exchange in biocalcites for paleoclimate reconstruction

The oxygen isotope compositions of fossil biocalcites, such as foraminifera, bivalves, brachiopods, and belemnites have allowed for reconstructions of sea surface and deep ocean temperatures throughout the Phanerozoic and constitute the most important reco ...

EPFL2024

Leveraging the Snap Buckling of Bistable Magnetic Shells to Design a Refreshable Braille Dot

Pedro Miguel Nunes Pereira de Almeida Reis, Tian Chen, Arefeh Abbasi, Bastien Freddy Gustave Aymon

A design concept is proposed for the building block, a dot, of programmable braille readers utilizing bistable shell buckling, magnetic actuation, and pneumatic loading. The design process is guided by Finite Element simulations, which are initially valida ...

Hoboken2023

Magneto-active elastic shells with tunable buckling strength

Pedro Miguel Nunes Pereira de Almeida Reis, Matteo Pezzulla, Dong Yan, Arefeh Abbasi

Shell buckling is central in many biological structures and advanced functional materials, even if, traditionally, this elastic instability has been regarded as a catastrophic phenomenon to be avoided for engineering structures. Either way, predicting crit ...

2021

Nondestructive Prediction of the Buckling Load of Imperfect Shells

Tobias Schneider, Emmanuel Georges Albert Virot, Emilio José Lozano Vazquez

From soda cans to space rockets, thin-walled cylindrical shells are abundant, offering exceptional load carrying capacity at relatively low weight. However, the actual load at which any shell buckles and collapses is very sensitive to imperceptible defects ...

AMER PHYSICAL SOC2020

Measuring the Intra-Atomic Exchange Energy in Rare-Earth Adatoms

Harald Brune, François Patthey, Stefano Rusponi, Marina Pivetta

We present the first experimental determination of the intra-atomic exchange energy between the inner 4f and the outer 6s5d shells in rare-earth elements. Inelastic electron tunneling spectroscopy on individual rare-earth atoms adsorbed on metal-supported ...

AMER PHYSICAL SOC2020

chi-Shell, a new spatial deployable lattice compared to traditional reticulated shells

Mark Pauly, Florin Isvoranu, Etienne Bouleau

The chi-Shells is a new kind of deployable reticulated shells that has features comparable to other traditional shells. Its deployment uses the mechanical properties of a beam grid to generate a three-dimensional shape. This new generation of reticulated s ...

INT CENTER NUMERICAL METHODS ENGINEERING2019

X-Shell, a new spatial deployable lattice compared to traditional reticulated shells

Mark Pauly, Florin Isvoranu, Francis Julian Panetta, Etienne Bouleau

The χ-Shells is a new kind of deployable reticulated shells that has features comparable to other traditional shells. Its deployment uses the mechanical properties of a beam grid to generate a three-dimensional shape. This new generation of reticulated she ...

International Association for Shell and Spatial Structures (IASS)2019

Tuning the Incorporation of Magnesium into Calcite during Its Crystallization from Additive-Free Aqueous Solution

Esther Amstad, Camelia Borca, Huachuan Du

Under ambient conditions, marine organisms are able to synthesize a variety of functional materials, ranging from eye lenses to protective shells through the meticulous control over magnesium incorporation into calcite during its crystallization. The mecha ...

AMER CHEMICAL SOC2019

Evolution of critical buckling conditions in imperfect bilayer shells through residual swelling

Pedro Miguel Nunes Pereira de Almeida Reis, Matteo Pezzulla, Dong Yan, Anna Lee

We propose and investigate a minimal mechanism that makes use of differential swelling to modify the critical buckling conditions of elastic bilayer shells, as measured by the knockdown factor. Our shells contain an engineered defect at the north pole and ...

ROYAL SOC CHEMISTRY2019

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Seashell

Diagenetic isotope exchange in biocalcites for paleoclimate reconstruction

Leveraging the Snap Buckling of Bistable Magnetic Shells to Design a Refreshable Braille Dot

Magneto-active elastic shells with tunable buckling strength

Nondestructive Prediction of the Buckling Load of Imperfect Shells

Measuring the Intra-Atomic Exchange Energy in Rare-Earth Adatoms

chi-Shell, a new spatial deployable lattice compared to traditional reticulated shells

X-Shell, a new spatial deployable lattice compared to traditional reticulated shells

Tuning the Incorporation of Magnesium into Calcite during Its Crystallization from Additive-Free Aqueous Solution

Evolution of critical buckling conditions in imperfect bilayer shells through residual swelling

Capsules with submicron shells: production, stability, and leakage behavior

Graph Chatbot

Chattez avec Graph Search

X-Shell, a new spatial deployable lattice compared to traditional reticulated shells

Diagenetic isotope exchange in biocalcites for paleoclimate reconstruction

Leveraging the Snap Buckling of Bistable Magnetic Shells to Design a Refreshable Braille Dot

Magneto-active elastic shells with tunable buckling strength

Nondestructive Prediction of the Buckling Load of Imperfect Shells

Tuning the Incorporation of Magnesium into Calcite during Its Crystallization from Additive-Free Aqueous Solution

Evolution of critical buckling conditions in imperfect bilayer shells through residual swelling

Measuring the Intra-Atomic Exchange Energy in Rare-Earth Adatoms

chi-Shell, a new spatial deployable lattice compared to traditional reticulated shells

Capsules with submicron shells: production, stability, and leakage behavior