Crack shear displacement gage

Details Crack shear displacement gage Crack shear displacement gage

1989-03-28

1990-04-10

Myracle, Jerry W.

Measuring and testing

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

By loading of specimen

73842, G01N 1908

Patent

active

049149652

ABSTRACT:
A crack shear displacement gage for use in determining the critical load of a composite laminate by providing the laminate with a crack at one end, applying a load to near the center of the laminate, and measuring the shift in the longitudinal direction between the end portions of the laminate above and below the crack. The gage comprises a frame, a fixing member mounted on the frame and having a head for clamping the end portion of the laminate above the crack, a contact for contacting the end face of the end portion below the crack, a spring member for urging the contact against the end face, and a strain gage mounted on the spring member for detecting the strain of the spring member.

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