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flow simulation lab
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CONFIDENTIAL
R12.0
Material Characterization for
CAE Simulation
Technical Research Division
Rheology Laboratory
2
> General
– CAE and physical properties measurement … P. 3
– Laboratory equipments … P. 4
– Sample preparation … P. 5
> Measurement of thermoplastic
– Viscosity … P. 7
– Density (P-v-T) … P. 9
– Crystallization … P. 11
– Thermal properties (Cp, k) … P. 12
– Mechanical properties (E, ν) … P. 14
> Measurement of thermoset
– Reactivity (cross-linking, curing kinetics) … P. 16
– Chemorheology of reactive material … P. 17
Content
3
Constitutive equation τ = f (η, deformation, …)
Conversion rate, R Heat capacity, Cp
Thermal conductivity, k
Density, ρ (P-v-T);
v P, T = f (α)
Physical properties considered in CAE
:u
TkT
t
TCp
gpDt
D τ
u
0 RjX
0
u
t
Thermodynamic
state
END FLOW PROPERTY to POST DEFORMATION
Thermoset: E(t, T, C)
Thermoplastic: E(t, T); Poisson ratio,ν
Mass
balance
Energy
balance
Momentum
balance
Cross-
linking
kinetics
4
Laboratory equipments
MCR 502 Rotation and
oscillation
test for
viscoelastic
property
CR-6000 Viscosity
Rheograph RG25 k, viscosity,
counter pressure
equipped
DSC 8500
Heating rate: 750 ℃ /min
Cooling rate: 600 ℃ /min
Min temp -180 ℃ (LN2)
pvT100 P-v-T
5
Sample preparation - Storage and treatment
Freezer
Vacuum oven
Halogen moisture analyzer
Mettler Toledo, HG63
Moisture level 0.01%
Analytical balance
Mettler Toledo, AE100+
Sensitivity 0.1 mg
7
Viscosity measurement
Rotational rheometer Drag flow
Capillary rheometer Pressure driven flow
Non-Newtonian
8
Viscosity data
Curve fitting:
turn scattered data points into usable
material function for CAE analysis
13
Thermal properties - Heat capacity (Cp)
Differential Scanning Calorimeter
Perkin-Elmer, DSC 8500
Heating rate: 750 ℃ /min
Cooling rate: 600 ℃ /min
Min temp -180 ℃ (LN2)
14
Mechanical properties (E, ν)
> Young’s modulus will be tested at different temperature
and different level of cross-linking.
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