Method and apparatus for simulation of the operational demands a

Details Method and apparatus for simulation of the operational demands a Method and apparatus for simulation of the operational demands a

1988-05-12

1989-04-18

Cuchlinski, Jr., William A.

Thermal measuring and testing

Thermal testing of a nonthermal quantity

Of susceptibility to thermally induced deteriouration, flaw,...

374 45, 374 55, 148127, 738656, G01N 306

Patent

active

048221767

ABSTRACT:
A method and apparatus for simulating operational demands acting an expanded tube joints includes penetrating a central inner region of a circular disc of a test body with a plurality of hollow cylinders. Sleeves or hollow plugs are connected to the hollow cylinders in the vicinity of the disc. A stress condition is created in the inner region corresponding to the operational demands by applying a force in an outer region of the disc through a uniform introduction of heat in the outer region while cooling the inner region. Outer hollow cylinders may serve as cooling passages and may form a boundary between the inner region and the outer region. Thermal insulation may be associated with the outer region. An electric resistance heater may be associated with the outer region for applying the force.

REFERENCES:
patent: 4575257 (1986-03-01), Ogura et al.
patent: 4592662 (1986-06-01), Robins et al.
patent: 4772336 (1988-09-01), Enomoto et al.

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