Crackling Noise in Materials

30 Apr 2018, 09:00 → 11 May 2018, 18:00 Europe/Stockholm

122:026 (Nordita, Stockholm)

Joachim Matthiesen (NBI), Lasse Laurson (Aalto U), Stephane Santucci (ENS Lyon)

Venue

Nordita, Stockholm, Sweden

Scope

Numerous systems including deformation and fracture of materials, dynamics of domain walls in ferromagnets, and earthquakes respond to slow and smooth external driving by exhibiting intermittent and bursty dynamics, or ”crackling noise”, consisting of a sequence of events with a broad size distribution. A major challenge we aim to address within this program is that in many cases, the relevant empirical and experimental phenomena remain unexplained by theory. To this end, we plan to bring together experts of various fields where crackling noise is observed, including contributions from theory, numerical simulations and experiment, to present an overview of the current developments, and to discuss open problems of the field.

Slides from talks and Posters
[If you have slides or posters and want to have them available on this page, please send them to info@nordita.org]

Sponsored by:

This program is sponsored by Nordita and CECAM-Finland.

Monday, 30 April

11:00 → 12:00 The onset of the flow in disordered materials: depinning and yielding transition

Speaker: Alberto Rosso

14:00 → 15:00 Out-of-equilibrium critical phenomena in sheared yield stress materials

Speaker: Kirsten Martens

16:00 → 17:00 Scaling of moments and order-parameter distributions in Brownian particles and branching processes with finite-size effects

Speaker: Alvaro Corral

Tuesday, 1 May

09:30 → 10:30 Intermittent collective dynamics of domain walls in the creep regime

Speaker: Alejandro Kolton

11:00 → 12:00 Experimental spatiotemporal clustering in magnetic creep dynamics

Speaker: Gianfranco Durin

14:00 → 15:00 Crackling in sheared granular matter

Speaker: Jonathan Bares

16:00 → 17:00 Avalanches in crystal plasticity: experiments and simulations

Speaker: Peter Ispanovity

Wednesday, 2 May

09:30 → 10:30 Seismicity in (nominally) brittle heterogeneous fracture: statistical organization of acoustic/fracture events going along with the slow propagation of a single crack

Speaker: Daniel Bonamy

11:00 → 12:00 Avalanches of elastic interfaces via the FRG, shape and correlations

Speaker: Pierre Le Doussal

14:00 → 15:00 Hysteresis and avalanches in drainage/imbibition displacements: from single defects to disordered media

Speaker: Jordi Ortin

16:00 → 17:00 Intermittent rupture dynamics of a solid-solid frictional interface

Speaker: Elsa Bayart

Thursday, 3 May

09:00 → 09:30 Crackling noise during uniaxial compression of nanopillars

Speaker: Stefanos Papanikolaou

09:30 → 10:00 Avalanches, Shapes & Waiting times

Speaker: Mikko Alava

10:00 → 10:30 Near-tip microfracturing dynamics of fast cracks and its consequences on roughening features of effective crack lines

Speaker: Daniel Bonamy

10:30 → 11:00 Coffee break

11:00 → 11:30 Burst dynamics of slow drainage in porous media

Speaker: Marcel Moura

11:30 → 12:00 Haines jumps in drainage/imbibition displacements involving a single pore

Speaker: Jordi Ortin

12:00 → 12:30 Finite-time scaling in local bifurcations: application to branching processes

Speaker: Alvaro Corral

12:30 → 14:00 Lunch break

14:00 → 14:30 Fracture of disordered quasi-brittle materials and size-effects on strength

Speaker: Jerome Weiss

14:30 → 15:00 Creep crack prediction

Speaker: Leevi Viitanen

15:00 → 15:30 Acoustic emission during compression of carbon & charcoal

Speaker: Eduard Vives

15:30 → 16:00 Deciphering the statistics of precursors in failure of quasi-brittle materials

Speaker: Laurent Ponson

16:00 → 16:30 Coffee break

16:30 → 17:00 Avalanches and Sand-pile models

Speaker: Kay Wiese

17:00 → 17:30 Impact of thermal effects and material disorder in fracture propagation

Speaker: Renaud Toussaint

20:00 → 22:00 Social dinner

Friday, 4 May

09:00 → 09:30 Crackling dynamics controlled by periodic excitation

Speaker: Jonathan Bares

09:30 → 10:00 A Renormalization Group Approach to the Fiber Bundle Model

Speaker: Alex Hansen

10:00 → 10:30 Non-local kinetic roughening: functional renormalization group approach

Speaker: Andrei Fedorenko

10:30 → 11:00 Coffee break

11:00 → 11:30 Domain wall dynamics & creep in CoFeB/MgO structures

Speaker: Gianfranco Durin

11:30 → 12:00 Avalanches in the mechanical response of icosahedral viruses and colloidal crystal shells

Speaker: Carmen Miguel

12:00 → 12:30 Plastic avalanches in the so-called elastic regime of metallic glasses

Speaker: Kirsten Martens

12:30 → 14:00 Lunch break

14:00 → 14:30 Extended criticality and anomalous system size scaling in crystal plasticity

Speaker: Peter Ispanovity

14:30 → 15:00 Predicting plastic deformation using machine learning

Speaker: Henri Salmenjoki

15:00 → 15:30 Existence and value of the critical force in interface models

Speaker: Vincent Déméry

15:30 → 16:00 A random critical point separates brittle and ductile yielding transitions in amorphous materials

Speaker: Alberto Rosso

16:00 → 16:30 Coffee break

16:30 → 17:00 On the relevance of disorder in sheared amorphous materials

Speaker: Elisabeth Agoritsas

17:00 → 17:30 Shapes of Avalanches

Speaker: Pierre Le Doussal

Monday, 7 May

09:30 → 10:30 Identifying Far from Equilibrium Microstructures in Crystal Plasticity and Other Crackling Noise Phenomena

Speaker: Stefanos Papanikolaou

11:00 → 12:00 Mean-field descriptions of sheared structurally disordered systems

Speaker: Elisabeth Agoritsas

14:00 → 15:00 Discrete element modelling of crackling noise during compressive failure

Speaker: Ferenc Kun

16:00 → 17:00 Wood avalanches

Speaker: Tero Mäkinen

Tuesday, 8 May

09:30 → 10:30 Lecture on Functional Renormalization Group theory

Speaker: Kay Wiese

14:00 → 15:00 Dislocation avalanches

Speaker: Mikko Alava

16:00 → 17:00 The role of (thermal) noise in nanoscale friction

Speaker: Astrid De Wijn

Wednesday, 9 May

09:30 → 10:30 Lecture on Functional Renormalization Group theory

Speaker: Kay Wiese

14:00 → 15:00 Barkhausen noise from precessional domain wall motion

Speaker: Lasse Laurson

16:00 → 17:00 Existence and value of the critical force in interface models

Speaker: Vincent Démery

Thursday, 10 May

09:30 → 10:30 Deciphering fracture patterns: what crack paths teach us about the mechanics and physics of fracture

Speaker: Laurent Ponson

14:00 → 15:00 Triggering processes in rock fracture and beyond

Speaker: Joern Davidsen

16:00 → 17:00 Triggering large events with small external noise in solid and granular friction

Speaker: Valérie Vidal

Friday, 11 May

09:00 → 15:00 Informal discussion / Open Questions / Kisses & Fly