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Category: List of Bases 2002 2002 ICTP activities in Trieste ICTP activities in Trieste
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lecture

Cosponsor(s):

the VolkswagenStiftung (Hannover, Germany)

Start Time:

4 March 2002 at 08:30

Ends On:

7 March 2002

Location:

ICTP

Venue:

M (LH)

Organizer(s):

E.C. Aifantis, A. El-Azab, P. Hähner, N. Neuhäuser, M. Zaiser, S. Zapperi and A.Vespignani

Description:

In recent years there has been a growing demand for applying statistical physics concepts to materials problems. In particular, this is true for problems related to plasticity, such as strength, formability and failure of metals. While plasticity has for a long time been considered a domain of materials scientists and engineers, it is now being recognized that more advanced theoretical concepts can contribute to predicting the plastic deformation behaviour on microscopic and mesoscopic scales. On these scales, plasticity is governed by the complex dynamics of systems of interacting defects whose characterization necessitates advanced experimental and theoretical tools. In this perspective, plasticity provides an interesting field of application for non-equilibrium statistical physics concepts such as intermittency, fractal patterning, nonlinear waves, criticality and chaos.

The aim of the Workshop is to provide a forum dedicated to the exchange between materials scientists working in plasticity and statistical physicists interested in materials problems.

Material:

no notes available

08:30
09:00
Opening Remarks
30'
09:00
09:45
Self-organized criticality
45'
A. Vespignani
ICTP
10:00
10:15
Strain as a time-dependent stochastic process
15'
R. Thomson
NIST
10:30
10:45
Coffee Break
15'
11:00
11:15
Avalanches and scaling in viscoplastic deformation
15'
C. Miguel
University of Barcelona
11:30
11:45
Power laws in creep - broad patterns and possible origins
15'
G. Daehn
Ohio State University
12:00
12:15
Crossover in jerky flow: Chaos to criticality
15'
S. Noronha
Virigina Tech
12:30
13:45
Lunch Break
01h15'
14:00
14:15
Scaling of deformation-induced microstructures
15'
D. Hughes
Sandia National Laboratories
14:30
14:45
Acoustic emission analysis of coated superalloys
15'
I. Vougiouklakis
Joint Research Center
15:00
15:15
Statistical mechanics of viscoplastic deformation, AE
15'
J. Weiss
CNRS
15:30
15:45
Coffee Break
15'
16:00
16:15
Submicron resolution 3D X-ray structural microscopy
15'
B.C. Larson
Oakridge National Laboratory
16:30
16:45
X-ray studies of statistical properties of dislocation systems
15'
F. Szekely
Ëotvos University
17:00
17:15
Surface morphology of deformed crystals studied by AFM
15'
A. Schwab
Techical University
17:30
17:45
Experimental measurments of the heterogeneous nature of slip
15'
L. Levine
NIST
20:00
20:00
Get-Together Party
09:00
09:45
Pinning, depinning, and creep of topological defects in random media
45'
T. Nattermann
University of Cologne
10:00
10:15
Depinning, percolation,& size effects in hardening
15'
J. Gil Sevillano
CEIT, Spain
10:30
10:45
Coffee Break
15'
11:00
11:15
Pinning/Depinning in the Dislocation Dynamics of Ni3Al
15'
D. Chrzan
University of California - Berkeley
11:30
11:45
Orowan process controlled dislocation glide
15'
V. Mohles
University of Münster
12:00
12:15
Diffusion of linear defects on a periodic structure
15'
F. Marchesoni
University of Camerino
12:30
13:45
Lunch Break
01h15'
14:00
14:15
Dislocation creep and plasticity of the vortex matter
15'
V. Vinokur
Arogonne National Laboratory
14:30
14:45
Dislocation patterning and size effects in 2D
15'
R. Selinger
The Catholic University of America
15:00
15:15
Statistics of vortex velocity fluctuations, theory of turbulence
15'
C. Sire
University Paul Sabatier
15:30
15:45
Coffee Break
15'
16:00
16:45
Brief presentations of Poster Contributions
45'
17:00
17:00
Poster Session
09:00
09:15
Cell structures - a physics approach
15'
J. Sethna
Cornell University
10:15
10:30
Disorientation in dislocation structures
15'
W. Pantleon
Risø National Laboratory
10:30
10:45
Coffee Break
15'
11:00
11:15
Statistical properties of dislocation assemblies
15'
I. Groma
Ëotvos University
11:30
11:45
Statistical dislocation dynamics under finite deformations
15'
A. El-Azab
Pacific Northwest National Laboratory
12:00
12:15
Mesoscopic modelling of plastic flow
15'
M. Zaiser
The University of Edinburgh
12:30
12:45
Lunch Break
15'
14:00
14:15
From dislocation intersections to plastic flow, DDSim
15'
B. Devincre
CNRS/ONERA
14:30
14:45
Phase Field Methods and Dislocations
15'
A. Finel
CNRS/ONERA
15:00
15:15
Stochastic finite elements
15'
P. Spanos (or TBA)
15:30
15:45
Coffee Break
15'
16:00
16:15
Plasticity of granular media
15'
S. Roux
CNRS/St. Gobain
16:30
16:45
Plasticity of metallic glasses
15'
V. Bengus
B. Verkin Inst. for Low Temperature Physics & Engineering
17:00
17:15
Controlling plastic flow at the quantum level
15'
F. Nori
Frontier Research System
17:30
17:45
Plasticity of amorphous polymers
15'
C. G'sell
UMR/CNRS 7556
18:00
18:15
Acoustic emission from the failure of paper
15'
M. Alava
Helsinki University of Technology
20:00
20:15
CONFERENCE DINNER
15'
09:00
09:15
Plastic waves in dynamic strain aging alloys
15'
P. Hähner
Joint Research Centre - Petten
10:00
10:15
Stick-slip transition during shear deformation of a polymer melt
15'
V. Koutsos
The University of Edinburgh
10:30
10:45
Coffee Break
15'
11:00
11:15
Portevin-LeChatelier serrations in CuAl and AlMg
15'
F.B. Klose
Technical University - Braunschweig
11:30
11:45
Time series analysis and deterministic structure of PLC
15'
D. Kugiumtzis
Aristotle University of Thessaloniki
12:00
12:15
Chaos, SOC and Anderson-like transition in jerky flow
15'
M.S. Bharati
Indian Institute of Science - Bangalore
12:30
12:45
Lunch Break
15'
14:00
14:15
Discussion Session
15'
15:15
15:30
Closing Remarks
15'
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