Publications de Lars Kristoffer Uhlen Blatny

Microstructural controls on the plastic consolidation of porous brittle solids

Henning Löwe, Johan Alexandre Philippe Gaume, Lars Kristoffer Uhlen Blatny

2023

Modeling the mechanics and rheology of porous and granular media: an elastoplastic continuum approach

The complex mechanics of porous and granular media play a significant role in various industrial processes and natural phenomena. As an example, understanding the mechanics of how failure occurs, localizes and propagates in porous brittle solids under vari ...

EPFL2023

A Depth-Averaged Material Point Method for Shallow Landslides: Applications to Snow Slab Avalanche Release

Bertil Trottet, Johan Alexandre Philippe Gaume, Denis Aloyse Joseph Steffen, Lars Kristoffer Uhlen Blatny, Louis Marie Cédric Guillet

Shallow landslides pose a significant threat to people and infrastructure. Despite significant progress in the understanding of such phenomena, the evaluation of the size of the landslide release zone, a crucial input for risk assessment, still remains a c ...

AMER GEOPHYSICAL UNION2023

Towards a predictive multi-phase model for alpine mass movements and process cascades

Bertil Trottet, Johan Alexandre Philippe Gaume, Lars Kristoffer Uhlen Blatny, Xingyue Li, Alessandro Cicoira

Alpine mass movements can generate process cascades involving different materials including rock, ice, snow, and water. Numerical modelling is an essential tool for the quantification of natural hazards. Yet, state-of-the-art operational models are based o ...

2022

Microstructural Origin of Propagating Compaction Patterns in Porous Media

Paul Berclaz, Johan Alexandre Philippe Gaume, Lars Kristoffer Uhlen Blatny

Porous rocks, foams, cereals, and snow display a diverse set of common compaction patterns, including propagating or stationary bands. Although this commonality across distinct media has been widely noted, the patterns??? origin remains debated???current m ...

2022

Computational micromechanics of porous brittle solids

Henning Löwe, Johan Alexandre Philippe Gaume, Lars Kristoffer Uhlen Blatny, Stephanie Wang

Porous brittle solids evidence complex mechanical behavior, where localized failure patterns originate from mechanical processes on the microstructural level. In order to investigate the failure mechanics of porous brittle solids, we outline a general stoc ...

2021

Modeling snow and avalanches with the Material Point Method and finite strain elastoplasticity

Bertil Trottet, Johan Alexandre Philippe Gaume, Lars Kristoffer Uhlen Blatny, Xingyue Li

Snow is a complex and fascinating material which can sustain stresses like a solid or flow like a fluid depending upon the load it is subjected to. The transition from solid to fluid state can lead to catastrophic snow slab avalanches. Modeling large defor ...

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