Ported jacket for use in deformation measurement apparatus

Details Ported jacket for use in deformation measurement apparatus Ported jacket for use in deformation measurement apparatus

1988-12-16

1990-03-06

Myracle, Jerry W.

Measuring and testing

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

By loading of specimen

73818, G01N 300

Patent

active

049055216

ABSTRACT:
A device for allowing deformation measurement of a jacketed specimen when the specimen is loaded includes an elastomeric specimen container or jacket surrounding a specimen while the specimen is being loaded by a test apparatus. The specimen jacket wall is compressible, and the wall follows and allows deformation of the specimen. The jacket wall of compressible material is provided with at least one opening and a thin layer or shim of substantially non-compressible (metal) material covers and seals this opening. An extensometer is then positioned with its specimen engaging contact members engaging the substantially non-compressible material to measure the deformation of the specimen when the specimen is loaded, without compressibility effects of the jacket.

REFERENCES:
patent: 3199341 (1965-08-01), Heuer, Jr.
patent: 3505860 (1970-04-01), Bishop
patent: 3616685 (1971-11-01), Strom
patent: 4047425 (1977-09-01), Handy
patent: 4122704 (1978-10-01), Lutenegger
patent: 4562726 (1986-01-01), Barnaby
patent: 4579003 (1986-04-01), Riley
patent: 4599891 (1986-07-01), Brauer

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