Dynamic Mechanical Analysis part 1 doc

... Introduction 19 99 CRC Press LLC Table of Contents Chapter 1 An Introduction to Dynamic Mechanical Analysis 1. 1 A Brief History of DMA 1. 2 Basic Principles 1. 3 Sample Applications 1. 4 Creep–Recovery ... Creep–Recovery Tests 3 .10 Thermomechanical Analysis Notes Chapter 4 Dynamic Testing 4 .1 Applying a Dynamic Stress to a Sample 19 99 CRC Press LLC dyn...

Ngày tải lên: 05/08/2014, 09:19

... as (4.24) L= () + 1 jAAln ()nnj L= () + ln () AA nnj Lª- () () 1 2 AA n 2 n +1 2 n 2 A LDª () = 1 2 WW st pdtan T M = + 2 1 4 1 2 2 p pG L Tntt=- ( ) (/)2 0n 19 99 CRC Press LLC Axial analyzers are normally ... 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 f...

Ngày tải lên: 05/08/2014, 09:19

... Cambridge, 19 90. R. De le Garza, Measurement of Viscoelastic Properties by Dynamic Mechanical Analysis, Masters thesis, Univer- sity of Texas at Austin, 19 94. R. Hagan, Polymer Testing, 13 , 11 3, 19 94. 3. ... York, 19 86, Ch. 11 . S. Matsuoka, in Failure of Plastics, W. Brostow and R. D. Corneliussen, Eds., Hanser, New York, 19 86, Ch. 3. S. Matsuoka, Relaxation Phenomena in...

Ngày tải lên: 05/08/2014, 09:19

... However, as creep is not the same as dynamic tests, sometimes the data are not even similar GN¢== ÆÆ Æ () () ()wwggyg wg g 2 0 1 2 0 1 0 22 Y 1 2=- () =¢ss xy G Y 1 2 07 21ddt ddt ghwwhh wg () = ¢¢ {} + ¢¢ ¢ () [] = () . YY 11 ddt ... Y 1 and Y 2 . The storage shear modulus, G¢, can be used to estimate Y 1 . Under conditions where the Cox–Merz rule applies, we can assume (7...

Ngày tải lên: 05/08/2014, 09:19

... ( )( ) ¢ ≤≤ww w w 04 04 0 014 10 EtJt d t() ( )-= Ú tt 0 1 19 99 CRC Press LLC a mixing rule. A mixing rule is a quantitative relationship that relates the observed mechanical properties of a ... mas- tercurve: 40 (7. 21) where E(t) is the stress relaxation modulus, E¢ is the storage modulus from the dynamic experiment, w is the dynamic test frequency, and E≤ is the dynamic loss...

Ngày tải lên: 05/08/2014, 09:19

... 2-6-3, Hitotsubashi, Chiyoda-ku, Tokyo 10 1-84 21 Japan ISBN 3-540-22277-4 Springer-Verlag Berlin Heidelberg New York Library of Congress Control Number: 20059 219 10 This work is subject to copyright. ... Heidelberg SPIN: 10 959534 14 / 210 9 fk – 5 4 3 2 1 0 – Printed on acid-free paper 4 How to handle biological specimens Sampling from cadavers Observation on the spot of poisoning W...

Ngày tải lên: 22/01/2014, 00:20

... medicine ball has an area of impact equivalent to a 1- ft diameter, while the superball’s is 1 in., we can calculate the stress by (2.2) Figure 2 .1 gives a visual interpretation of the results. Despite ... strain-controlled instrument, where one s=FA/ g=DYY ˙ s 19 99 CRC Press LLC quantifying the data can be used, as shown in Figure 1. 10, 33 and will be discussed in Chapter 3. Co...

Ngày tải lên: 05/08/2014, 09:19

... (Kinematic) 1 St = 1. 00E-04 m 2 /s 1 cSt = 1. 00E-06 m 2 /s 1 ft 2 /s = 0.0929 m 2 /s Work (Energy) 1 ft*lb = 1. 36 J 1 Btu = 1. 05 J 1 cal = 4 .18 6 kJ 1 kW*h = 3.6 MJ 1 eV = 1. 6E -19 J 1 erg = 1. 60E-07 ... 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 1 ft-lb/s = 1. 4 W 1 ca...

Ngày tải lên: 05/08/2014, 09:19

... E */2 (1 + n) Complex viscosity h* = 3G*/ w = h¢ - i h≤ Complex compliance J * = 1/ G * hwn** *()==+GE 21 hhh* =¢- ¢¢ i hgh g ddt t tddt () = + = () (/ )1 19 99 CRC ... data as used to determine the T g (Figure 3 .11 b). Since many materials are used in contact with a dissimilar material FIGURE 3 .10 Thermomechanical analysis test methods in common use....

Ngày tải lên: 05/08/2014, 09:19

... Polymers, Wiley, New York, 19 80, Ch. 5–7. 3a. R. Armstrong, B. Bird, and O. Hassager, Dynamics of Polymer Fluids, vol. 1, Fluid Mechanics, 2nd ed., Wiley, New York, 19 87, pp .15 1 15 3. 3b. D. Holland, ... p. 19 41, 19 94. 4. J. Gillham in Developments in Polymer Characterizations, vol. 3, J. Dworkins, Ed., Applied Science Publisher, Princeton, 19 82, pp. 15 9–227. J. Gillham and J....

Ngày tải lên: 05/08/2014, 09:19