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Title: Self-aligning hydraulic piston assembly for tensile testing of ceramic

The present invention is directed to a self-aligning grip housing assembly that can transmit an uniaxial load to a tensil specimen without introducing bending stresses into the specimen. Disposed inside said grip housing assembly are a multiplicity of supporting pistons connected to a common source of pressurized oil that carry equal shares of the load applied to the specimen irregardless whether there is initial misalignment between the specimen load column assembly and housing axis.
Inventors:
 [1]
  1. (Oak Ridge, TN)
Issue Date:
OSTI Identifier:
866332
Assignee:
United States of America as represented by United States (Washington, DC) ORNL
Patent Number(s):
US 4686860
Contract Number:
AC05-84OR21400
Research Org:
LOCKHEED MARTIN ENRGY SYST INC
Country of Publication:
United States
Language:
English
Subject:
self-aligning; hydraulic; piston; assembly; tensile; testing; ceramic; directed; grip; housing; transmit; uniaxial; load; tensil; specimen; introducing; bending; stresses; disposed; inside; multiplicity; supporting; pistons; connected; common; source; pressurized; oil; carry; equal; shares; applied; irregardless; initial; misalignment; column; axis; column assembly; housing assembly; disposed inside; tensile testing; bending stresses; load applied; common source; pressurized oil; specimen load; piston assembly; axial load; bending stress; introducing bending; /73/