work package 8: colmat collimators & materials for higher beam power beam department of...
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Work package 8: ColMat Collimators & materials for higher beam power beam
Department of MechanicsPolitecnico di Torino
European Coordination for Accelerator Research and Development
Kick-off meeting - 17 June 2009
Department of MechanicsPolitecnico di Torino
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About us
http://www.dimec.polito.it/en
Politecnico di Torino is one of the main universities in Italy and in Europe in the field of technical-scientific training, in Engineering and Architectural research.The Politecnico has 28.000 students studying on 116 courses (34 Bachelor's degree courses; 35 Master of Science courses; 20 Doctorates and 27 specialization courses).
The Department of Mechanics (DIMEC) promotes, coordinates and manages the teaching, research and consulting activities in the fields of functional and structural design, testing of mechanical devices and systems, their application, evolution and integration into complex systems
Department of MechanicsPolitecnico di Torino
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Tests & numerical simulation
One important field of interest for our research is the thermo and dynamic (under shock and impact) characterization of materials and structures and the numerical modeling in such conditions. We have many devices for the experimental characterization of materials under shock and impacts and some competences in numerical code.
Impact test
Hopkinson bar
Explosions
Material modelling
Structures and joints modelling
Department of MechanicsPolitecnico di Torino
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Materials
Metals and alloys
Polymers
Cellular solids
Composite and metal matrix
Department of MechanicsPolitecnico di Torino
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Cooperation with Cern
Five years ago a cooperation with Mechanical and Materials Engineering Group of the Engineering Department of Cern was born in the study of thermal shock problems in the accelerator collimator
10-4
10-2
100
102
104
0.9
1
1.1
1.2
1.3
strain-rate (s-1)
Str
ain
-ra
te a
mp
lific
atio
n fa
cto
r
experimental testsCowper-Symonds fitJohnson-Cook fit
M10
Lu
R=5
Ø5
0 0.5 1 1.5 2 2.5 30
5
10
15
20
25
30
Stroke (mm)
Fo
rce
(kN
)
strain-rate 10-3 1/s
strain-rate 10-1 1/s
strain-rate 101 1/s
strain-rate 103 1/snumerical fit
Thermo-mechanical model identification of a strengthened copper with an inverse method
Glidcop
Marco Peroni, Lorenzo Peroni, Alessandro DallocchioDymat 2009