Standard Test Methods for Rubber Deterioration—Dynamic Fatigue

Importancia y uso:

4.1 Tests for dynamic fatigue are designed to simulate the continually repeated distortions received in service by many rubber articles, such as tires, belts, footwear, and molded goods.

4.1.1 These distortions may be produced by extension, compressive, and bending forces or combinations thereof.

4.1.2 The effect of the distortions is to weaken the rubber until surface cracking or rupture occurs. Where rubber is combined with other flexible materials such as fabric, the effect may be evidenced by separation at the interface between the materials, caused either by breaking of the rubber or failure of the adhesion or both.

4.2 These tests are, therefore, of the following two types:

4.2.1 Type I—Tests designed to produce separation of rubber-fabric combinations by controlled bending of the specimens.

4.2.2 Type II—Tests designed to produce cracking on the surface of rubber by either repeated bending or extension as may occur in service.

Subcomité:

D11.15

Referida por:

C1187-20A, D3105-17R24, F2042-18, D0813-07R25, D2000-18R24E01

Volúmen:

09.01

Número ICS:

83.060 (Rubber)

Palabras clave:

crack growth; DeMattia flexing machine; DuPont flexing machine; flex fatigue; flexing; flexing fatigue; ply separation; rubber products; Scott flexing machine;