Apparatus for determining the fatigue limit of elastic material

Details Apparatus for determining the fatigue limit of elastic material Apparatus for determining the fatigue limit of elastic material

1984-03-01

1986-02-25

Ciarlante, Anthony V.

Measuring and testing

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

By loading of specimen

73830, 73831, 73834, 73856, G01N 332

Patent

active

045720029

ABSTRACT:
In order to determine the fatigue limit of elastic materials, especially rubber, under completely reversed stress by applying a load which alternates between zero and a maximum value and in order to determine the number of load alternations which leads to the breaking of the material, a plurality of strip-shaped rubber samples are clamped between two stationary clamping beams and a rocker. The rocker is approximately parallel to the beams and is moved at one end thereof by means of a crank mechanism. The rubber samples are each positioned parallel to one another in at least one row and are alternately stretched and relaxed to a different extent, depending on their spacing from the fulcrum of the rocker.

REFERENCES:
patent: 4083233 (1978-04-01), Seal
patent: 4379410 (1983-04-01), Fritts et al.

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