Apparatus for monitoring the fatigue strength of structures

Details Apparatus for monitoring the fatigue strength of structures Apparatus for monitoring the fatigue strength of structures

1994-10-31

1996-05-28

Chilcot, Richard

Measuring and testing

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

Indicating coating or sheet providing direct visual indication

73764, 73786, 73799, G01N 356, G01N 1700, G01L 106, G01B 1116

Patent

active

055200559

ABSTRACT:
An apparatus for monitoring the fatigue strength of a structure comprises a longitudinal rib which is attached or integrated to the surface of the structure. The rib has a plurality of transverse notches of differing depths, each of the notches having a rounded end adjacent the surface of the structure and a pointed end extending toward an exterior edge of the rib.

REFERENCES:
patent: 2724964 (1955-11-01), Singdale
patent: 3572091 (1971-03-01), McFarland
patent: 3782178 (1974-01-01), Thomas
patent: 3786679 (1974-01-01), Crites
patent: 4590804 (1986-05-01), Brull
patent: 5161891 (1992-11-01), Austill
patent: 5237875 (1993-08-01), de la Veaux
patent: 5319982 (1994-06-01), Creager
patent: 5325721 (1994-07-01), Pendergrass, Jr.
Patent Abstract of Japan for JP 60-209137 dated Oct. 21, 1985.
European Search Report dated Sep. 20, 1995.

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