ISSN:
1573-4803
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract A series of urethane-cross-linked polybutadiene elastomers of varying cross-linking levels have been investigated to determine the relationship between viscoelastic dissipation and tear (or fracture) resistance. Several points of correspondence were identified between these two properties. The first was an inverse proportionality in the terminal region between crosslink density and torsional creep behaviour as well as tear energy data, with the looser net-works being more dissipative and displaying the greatest resistance to tear. Secondly, master curves of both creep compliance and tear energy exhibited a unique intermediate plateau. This plateau measured approximately 13 decades in time in each case. The temperature dependences were determined to be the same for the tear energy and creep compliance. Finally, in the terminal or long time region, it was found that the dynamic loss modulusG″ could be linearly correlated with the tear energy.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01154592
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