Publication

Where is the limit? Yield strength improvement in silicon micro-structures by surface treatments

Related publications (48)

Mixed mode fracture behavior of welded wood joints investigated with the Arcan test

John Botsis, Joël Cugnoni, Parviz Navi, Martin Rhême

Friction welding of wood is an assembly method that is still under investigation and development. A possible application for welded wood joints is the fabrication of multi-layered panels (i.e., cross-laminated panels). In an effort to model the behavior of ...

Springer Verlag2016

20 Hz X-ray tomography during an in situ tensile test

Andreas Mortensen

This paper describes an in-situ tensile test in synchrotron tomography achieved for the first time with a frequency of 20 tomograms per second (20 Hz acquisition frequency). This allows us to capture rapid material fracture processes, such as that of a met ...

Springer2016

Flexural strength of micron-scale plate-like silicon in aluminum

Andreas Mortensen, Goran Zagar, Martin Guillermo Mueller, Marta Fornabaio

Mechanical properties of composite materials and alloys are strongly influenced by the intrinsic mechanical properties of the reinforcing phases they contain; however, due to the irregular shape and small size of particulate reinforcements, measuring their ...

2015

Modeling of crack propagation in weak snowpack layers using the discrete element method

Johan Alexandre Philippe Gaume

Dry-snow slab avalanches are generally caused by a sequence of fracture processes including (1) failure initiation in a weak snow layer underlying a cohesive slab, (2) crack propagation within the weak layer and (3) tensile fracture through the slab which ...

2015

Dynamic fracture along bimaterial and heterogeneous interfaces

Fabian Barras

Using a spectral resolution of the elastodynamic boundary integral equations, this poster is presenting the effect of tougher heterogeneities along a planar fracture plane. A centered crack propagating along a 1-D heterogeneous interface under mixed-mode l ...

2015

Influence of the moisture content on the fracture characteristics of welded wood joint. Part 1: Mode I fracture

John Botsis, Joël Cugnoni, Parviz Navi, Martin Rhême

Friction welding is a joining technique for wood materials. The positive aspects of this technique are the speed of processing and the absence of chemical or mechanical agents, but the welded joints are not water resistant. To understand better the effect ...

De Gruyter2013

Mixed-Mode Static and Fatigue Failure Criteria for Adhesively-Bonded FRP Joints

Moslem Shahverdi

Fiber-reinforced polymer (FRP) composites are increasingly used in many load-bearing structures. Joints are the most critical structural elements as they often become the weak links in engineering structures. Bonding and bolting are two of the main joini ...

EPFL2013

A meso-scale computational approach to dynamic failure in concrete

Leonardo Snozzi

The aim of the present thesis is to provide a numerical tool for the mechanical modeling of dynamic failure in concrete. This widely used construction material is characterized by a non-linear failure behavior, which is consequently difficult to describe w ...

EPFL2013

Discrete dislocation modeling of fracture in plastically anisotropic metals

William Curtin

The intrinsic lattice resistance to dislocation motion, or Peierls stress, depends on the core structure of the dislocation and is one essential feature controlling plastic anisotropy in materials such as HCP Zn, Mg, and Ti. Here, we implement an anisotrop ...

Pergamon-Elsevier Science Ltd2013

Effect of loading rate on fracture toughness and failure micromechanisms in marble

Jian Zhao, Qianbing Zhang

Fracture experiments in a notched semi-circular bend configuration were conducted to characterize rate effects and failure micromechanisms of a marble using a servo-hydraulic machine and a modified split Hopkinson pressure bar. Three real-time measurement ...

Elsevier2013

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