Deflection testing fixture assembly and methods of testing

Details Deflection testing fixture assembly and methods of testing Deflection testing fixture assembly and methods of testing

1993-03-05

1995-07-11

Williams, Hezron E.

Measuring and testing

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

By loading of specimen

G01N 320

Patent

active

054310610

ABSTRACT:
A testing fixture for investigating the effects of pressure loadings on marine hull and other plate panels in a testing machine includes a liquid-filled bladder adapted to be received on the machine platen, a fixture supported by the machine frame incorporating edge movement restraint members for receiving the panel to be tested and contacting it around its perimetrical edge on both sides, and a measuring element supported by the fixture for measuring the deflection of the panel as the bladder is moved with the platen and pliantly conforms to the surface of one side of the panel to apply a distributed load imposing a bend in the panel inboard of its restrained edges in two dimensions along two axes simultaneously over a substantial area of its surface.

REFERENCES:
patent: 358056 (1887-02-01), Mullen
patent: 924625 (1909-06-01), Putnam
patent: 1445963 (1923-02-01), LaBatt et al.
patent: 2404584 (1946-07-01), Liska et al.
patent: 2864253 (1958-12-01), Lenton
patent: 3760636 (1973-09-01), Serry
patent: 3975950 (1976-08-01), Erdei
patent: 4589288 (1986-05-01), Porter et al.
Publication stated by the author Craig Riley to have occurred in 1987 or prior thereto entitled "Structural Suitability Of .+-.45 Degree Fiberglass Laminates For Use In Marine Applications".
Publication Jun. 19, 1989--Sandwich Constructions 1 by Olsson and Reichard.

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