ISSN:
0032-3888
Keywords:
Chemistry
;
Chemical Engineering
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Creep experiments on two thermoplastics at constant values of tensile stress, temperature, and relative humidity previously reported for 132,000 h were continued to about 230,000 h. An equation of the form ∊ = ∊o + ∊+tn was used to predict the creep, where t is time and ∊o, ∊+, and n are constants for a given stress. ∊o, ∊+, and n were determined from the first 1900 h of data and were used to predict the creep to 230,000 h. The subsequent recovery on unloading was predicted using the same equation together with the superposition principle. Also reported are creep and recovery of companion specimens aged for about 98,000 h.
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/pen.760270809
