Testing of viscoelastic materials

Details Testing of viscoelastic materials Testing of viscoelastic materials

1990-09-17

1992-01-14

Noland, Tom

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

By loading of specimen

73 60, 374 47, G01N 324

Patent

active

050799568

ABSTRACT:
In a method of testing a sample of viscoelastic material held under pressure between two opposing, temperature-controlled dies, the sample is subjected to an oscillatory, rotary shearing force which has a predetermined amplitude and a frequency within the range 0.001 to 2 Hz, and a torque which is indicative of the response of the sample to the shearing force is measured, at least one measurement of the torque being made when the predetermined amplitude is at least .+-.10.degree. but not greater than .+-.360.degree..

REFERENCES:
patent: 2037529 (1936-04-01), Mooney
patent: 3479858 (1969-11-01), Umeno et al.
patent: 3488992 (1970-01-01), Veith et al.
patent: 4343190 (1982-08-01), Danko et al.
patent: 4552025 (1985-11-01), Barker et al.

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