Self-aligning hydraulic piston assembly for tensile testing of c

Details Self-aligning hydraulic piston assembly for tensile testing of c Self-aligning hydraulic piston assembly for tensile testing of c

1986-04-17

1987-08-18

Myracle, Jerry W.

Measuring and testing

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

Specimen clamp, holder, or support

73837, G01N 302

Patent

active

046868607

ABSTRACT:
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.

REFERENCES:
patent: 4081992 (1978-04-01), Aurora et al.
Lange, F. F. et al., Powder-Cushion Gripping . . . Testing, Journal of Testing and Evaluation, vol. 6, No. 5, Sep. '78, pp. 320-323.
Pears, C. D., Structural Ceramics and Testing of Brittle Materials, Proceedings of Illinois Institute of Tech. Research Inst., Mar. '67, pp. 139-189.

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