Standard Svensk standard · SS-ISO 6943:2011

Vulkat gummi - Bestämning av utmattning vid dragpåkänning (ISO 6943:2011, IDT)

Status: Gällande

Köp denna standard

Standard Svensk standard · SS-ISO 6943:2011

Vulkat gummi - Bestämning av utmattning vid dragpåkänning (ISO 6943:2011, IDT)
Prenumerera på standarden - Läs mer Dölj
Pris: 875 SEK
standard ikon pdf

PDF

Pris: 875 SEK
standard ikon

Papper

Pris: 1 400 SEK
standard ikon pdf + standard ikon

PDF + papper

Fler alternativ Färre alternativ
Omfattning
This International Standard describes a method for the determination of the resistance of vulcanized rubbers to fatigue under repeated tensile deformations, the test piece size and frequency of cycling being such that there is little or no temperature rise. Under these conditions, failure results from the growth of a crack that ultimately severs the test piece.The method is restricted to repeated deformations in which the test piece is relaxed to zero strain for part of each cycle. Analogous fatigue processes can occur under repeated deformations which do not pass through zero strain and also, in certain rubbers, under static deformation, but this International Standard does not apply to these conditions.The method is believed to be suitable for rubbers that have reasonably stable stress-strain properties, at least after a period of cycling, and that do not show undue stress softening or set, or highly viscous behaviour. Materials that do not meet these criteria might present considerable diffculties from the points of view of both experiment and interpretation. For example, for a rubber that develops a large amount of set during the fatigue test, the test strain will be ill-defned and the fatigue life is likely to differ markedly under constant maximum load and constant maximum extension conditions; how the results for such a rubber should be interpreted, or compared with those for other rubbers, has not been established by basic work. As a general guide, a rubber for which the set determined in accordance with 9.5 and 10.2 exceeds 10 % is likely to fall into this category. For this reason, the method is not considered suitable for most thermoplastic elastomers.Similar considerations apply with regard to other changes in elasticity behaviour during testing.

Ämnesområden

Gummi (83.060)


Köp denna standard

Standard Svensk standard · SS-ISO 6943:2011

Vulkat gummi - Bestämning av utmattning vid dragpåkänning (ISO 6943:2011, IDT)
Prenumerera på standarden - Läs mer Dölj
Pris: 875 SEK
standard ikon pdf

PDF

Pris: 875 SEK
standard ikon

Papper

Pris: 1 400 SEK
standard ikon pdf + standard ikon

PDF + papper

Fler alternativ Färre alternativ

Produktinformation

Språk: Engelska

Framtagen av: Gummi och gummiprodukter, SIS/TK 154

Internationell titel: Rubber, vulcanized - Determination of tension fatigue (ISO 6943:2011, IDT)

Artikelnummer: STD-82259

Utgåva: 3

Fastställd: 2011-11-24

Antal sidor: 32

Ersätter: SS-ISO 6943:2007