Method of tension stress testing of rubber

Details Method of tension stress testing of rubber Method of tension stress testing of rubber

1976-10-19

1978-04-04

Ciarlante, Anthony V.

Measuring and testing

Liquid analysis or analysis of the suspension of solids in a...

Content or effect of a constituent of a liquid mixture

G01N 308

Patent

active

040819949

ABSTRACT:
In a method of tension stress testing of rubber of the type wherein a rubber sample is elongated continuously at a predetermined speed and the tension stress is measured when the distance between a pair of reference positions set on the surface of the sample shows a predetermined elongation, prior to the actual test, a plurality of rubber samples having different hardness are elongated continuously under predetermined tension test conditions, the tension stress measuring time between the time of commencing the continuous elongation and a time at which the distance between the reference positions is measured, and by utilizing the data thus obtained and the data regarding the hardness of respective rubber samples, the measuring time function of the tension stress measuring time regarding the hardness is determined by a statistical method. In the actual test, the hardness of a rubber sample is measured, the tension stress measuring time is determined from the measured value of the hardness in accordance with the measuring time function, then the rubber sample is elongated continuously under said tension test conditions, and the stress is measured at the tension stress measuring time to determine the tension stress. SU

REFERENCES:
patent: 3003351 (1961-10-01), Ziegler et al.
patent: 3220250 (1965-11-01), Strandquist et al.
patent: 3435231 (1969-03-01), Griffiths et al.
patent: 3916679 (1975-11-01), Voll et al.

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