Dynamic Mechanical Analysis part 8 potx
Dynamic Mechanical Analysis part 8 potx
... case under Section 6.4
below and the latter as part of Section 6.7. A final note on cure profiles is that a
volume change occurs during the cure.
18
This shrinkage of the resin is important
and ... This is also done with thin films and adhesive coatings.
A sample cure profile for a commercial two -part epoxy resin is shown in Figure
6.6. From this scan, we can determine the minimum visco...
Dynamic Mechanical Analysis part 1 doc
...
Menard, Kevin Peter
Dynamic mechanical analysis : a practical introduction / by Kevin
P. Menard.
p. cm.
Includes bibliographical references.
ISBN 0 -84 93 -86 88- 8 (alk. paper)
1. Polymers Mechanical properties. ... works
International Standard Book Number 0 -84 93 -86 88- 8
Library of Congress Card Number 98- 53025
Printed in the United States of America 2 3 4 5 6 7 8 9 0
Printed...
Dynamic Mechanical Analysis part 2 ppt
... are often manipulated in various ways to extend the range of
the analysis by exploiting the Boltzmann superposition principle.
28
Master curves
from superpositioning strain, frequency, time, ... response
of the fibers is greatly affected by the solution it is tested in. Similar tests in both
dynamic and static modes are used in the medical, automotive, and cosmetic
industries. The ad...
Dynamic Mechanical Analysis part 3 pptx
... = 0.3 m/s
2
1 free fall (g) = 9 .80 6650 m/s
2
©1999 CRC Press LLC
Viscosity (Dynamic)
1 cP = 1.00E-03 Pa*s
1 P = 1.00E-01 Pa*s
1 kp*s/m
2
= 9 .81 E+00 Pa*s
1 kp*h/m
2
= 3.53E+04 Pa*s
Viscosity ... = 1.05 J
1 cal = 4. 186 kJ
1 kW*h = 3.6 MJ
1 eV = 1.6E-19 J
1 erg = 1.60E-07 J
1 J = 0.73 ft*lbF
1 J = 0.23 cal
1 kJ = 1 Btu
1 MJ = 0. 28 kW*h
Power
1 Btu/min = 17. 58 W...
Dynamic Mechanical Analysis part 4 pptx
... reciprocal,
13
and roughly related as
(3.5)
The analysis of the stress relaxation curve is shown in Figure 3.8a and is
analogous to the creep analysis. One interesting application of the stress ... 3.11b). Since many materials are used in contact with a dissimilar material
FIGURE 3.10 Thermomechanical analysis test methods in common use. Dilatometry
allows one to measure volumetric...
Dynamic Mechanical Analysis part 5 docx
... only plot dynamic
stress vs. dynamic strain, but also get E¢, E≤, E*, tan d, h*, and other dynamic
properties for each cycle. This allows us to plot those properties as a function of
dynamic stress ... as
©1999 CRC Press LLC
FIGURE 4.15 Results from dynamic stress–strain curves showing (a) the relationship between dynamic stress and strain and (b) tan d vs. dynamic
strain for tw...
Dynamic Mechanical Analysis part 6 pdf
... York, 1 980 , Ch. 5–7.
3a. R. Armstrong, B. Bird, and O. Hassager, Dynamics of Polymer Fluids, vol. 1, Fluid
Mechanics, 2nd ed., Wiley, New York, 1 987 , pp.151–153.
3b. D. Holland, J. Rheology, 38( 6), ... Young, Roark’s Formulas for Stress and Strain, McGraw-Hill, New York, 1 989 .
8. P. Zoller and Y. Fakhreddine, Thermochim. Acta, 2 38, 397, 1994. P. Zoller and D.
Walsh, Standard Pressure...
Dynamic Mechanical Analysis part 7 docx
... Rheology, MIT, Cambridge, 1990. R. De le Garza, Measurement
of Viscoelastic Properties by Dynamic Mechanical Analysis, Masters thesis, Univer-
sity of Texas at Austin, 1994. R. Hagan, Polymer Testing, ... and O. Hassenger, Dynamics of Polymer Fluids,
vol. 1 & 2, 2nd ed., Wiley, New York, 1 987 .
6. J. D. Ferry, Viscoelastic Properties of Polymers, 3rd ed., Wiley, New York, 1 980 . J....
Dynamic Mechanical Analysis part 9 doc
... differently, as shown in Figure 7 .8.
For example, in a tape adhesive, we desire sufficient flow under pressure at low
frequency to fill the pores of the material to obtain a good mechanical bond. When
the ... the first normal stress difference on molecular weight,
which is reported to be quite large.
26
7 .8 MASTER CURVES AND TIME–TEMPERATURE
SUPERPOSITION
As previous discussed, the problem...
Dynamic Mechanical Analysis part 10 docx
... through in deciding what tests to run. The process is shown in flow charts in
Figures 8. 1, 8. 2, and 8. 3.
8. 1 THE PROBLEM: MATERIAL CHARACTERIZATION
OR PERFORMANCE
The first question that has ... stress relaxation modulus, E¢ is the storage modulus from the
dynamic experiment, w is the dynamic test frequency, and E≤ is the dynamic loss
modulus. A similar equation exists for the...
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