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

1 The onset of the flow in disordered materials: depinning and yielding transition

Speaker: Alberto Rosso

2 Out-of-equilibrium critical phenomena in sheared yield stress materials

Speaker: Kirsten Martens

3 Scaling of moments and order-parameter distributions in Brownian particles and branching processes with finite-size effects

Speaker: Alvaro Corral

Tuesday 1 May

4 Intermittent collective dynamics of domain walls in the creep regime

Speaker: Alejandro Kolton

5 Experimental spatiotemporal clustering in magnetic creep dynamics

Speaker: Gianfranco Durin

6 Crackling in sheared granular matter

Speaker: Jonathan Bares

7 Avalanches in crystal plasticity: experiments and simulations

Speaker: Peter Ispanovity

Wednesday 2 May

8 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

9 Avalanches of elastic interfaces via the FRG, shape and correlations

Speaker: Pierre Le Doussal

10 Hysteresis and avalanches in drainage/imbibition displacements: from single defects to disordered media

Speaker: Jordi Ortin

11 Intermittent rupture dynamics of a solid-solid frictional interface

Speaker: Elsa Bayart

Thursday 3 May

12 Crackling noise during uniaxial compression of nanopillars

Speaker: Stefanos Papanikolaou

13 Avalanches, Shapes & Waiting times

Speaker: Mikko Alava

14 Near-tip microfracturing dynamics of fast cracks and its consequences on roughening features of effective crack lines

Speaker: Daniel Bonamy

15 Coffee break

16 Burst dynamics of slow drainage in porous media

Speaker: Marcel Moura

17 Haines jumps in drainage/imbibition displacements involving a single pore

Speaker: Jordi Ortin

18 Finite-time scaling in local bifurcations: application to branching processes

Speaker: Alvaro Corral

19 Lunch break

20 Fracture of disordered quasi-brittle materials and size-effects on strength

Speaker: Jerome Weiss

21 Creep crack prediction

Speaker: Leevi Viitanen

22 Acoustic emission during compression of carbon & charcoal

Speaker: Eduard Vives

23 Deciphering the statistics of precursors in failure of quasi-brittle materials

Speaker: Laurent Ponson

24 Coffee break

25 Avalanches and Sand-pile models

Speaker: Kay Wiese

26 Impact of thermal effects and material disorder in fracture propagation

Speaker: Renaud Toussaint

27 Social dinner

Friday 4 May

28 Crackling dynamics controlled by periodic excitation

Speaker: Jonathan Bares

29 A Renormalization Group Approach to the Fiber Bundle Model

Speaker: Alex Hansen

30 Non-local kinetic roughening: functional renormalization group approach

Speaker: Andrei Fedorenko

31 Coffee break

32 Domain wall dynamics & creep in CoFeB/MgO structures

Speaker: Gianfranco Durin

33 Avalanches in the mechanical response of icosahedral viruses and colloidal crystal shells

Speaker: Carmen Miguel

34 Plastic avalanches in the so-called elastic regime of metallic glasses

Speaker: Kirsten Martens

35 Lunch break

36 Extended criticality and anomalous system size scaling in crystal plasticity

Speaker: Peter Ispanovity

37 Predicting plastic deformation using machine learning

Speaker: Henri Salmenjoki

38 Existence and value of the critical force in interface models

Speaker: Vincent Déméry

39 A random critical point separates brittle and ductile yielding transitions in amorphous materials

Speaker: Alberto Rosso

40 Coffee break

41 On the relevance of disorder in sheared amorphous materials

Speaker: Elisabeth Agoritsas

42 Shapes of Avalanches

Speaker: Pierre Le Doussal

Monday 7 May

43 Identifying Far from Equilibrium Microstructures in Crystal Plasticity and Other Crackling Noise Phenomena

Speaker: Stefanos Papanikolaou

44 Mean-field descriptions of sheared structurally disordered systems

Speaker: Elisabeth Agoritsas

45 Discrete element modelling of crackling noise during compressive failure

Speaker: Ferenc Kun

46 Wood avalanches

Speaker: Tero Mäkinen

Tuesday 8 May

47 Lecture on Functional Renormalization Group theory

Speaker: Kay Wiese

48 Dislocation avalanches

Speaker: Mikko Alava

49 The role of (thermal) noise in nanoscale friction

Speaker: Astrid De Wijn

Wednesday 9 May

50 Lecture on Functional Renormalization Group theory

Speaker: Kay Wiese

51 Barkhausen noise from precessional domain wall motion

Speaker: Lasse Laurson

52 Existence and value of the critical force in interface models

Speaker: Vincent Démery

Thursday 10 May

53 Deciphering fracture patterns: what crack paths teach us about the mechanics and physics of fracture

Speaker: Laurent Ponson

54 Triggering processes in rock fracture and beyond

Speaker: Joern Davidsen

55 Triggering large events with small external noise in solid and granular friction

Speaker: Valérie Vidal

Friday 11 May

56 Informal discussion / Open Questions / Kisses & Fly