Accession Number:

AD0269535

Title:

A TENSILE TESTING APPARATUS FOR SHORT FINE FILAMENTS WITH OPTICAL-MECHANICAL STRAIN MEASUREMENT

Descriptive Note:

Corporate Author:

AERONAUTICAL SYSTEMS DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

• EMRICK,J.E.
• GEGEL,H.L.

Report Date:

1961-09-01

Pagination or Media Count:

1.0

Abstract:

An apparatus was designed and built, which will obtain relatively accurate stress-strain curves of fine metallic filaments and whiskers. The principle of operation is based upon extension of a calibrated spring to apply the load. The strain is measured optically by projecting the gauge marks on two ground-glass plates attached to dial indicators. The magnitude of error in load and strain measurements is very slight. Stress-strain measurements of elastic moduli for two filament metals were made as a final check. Author

Descriptors:

• *MECHANICAL PROPERTIES
• *OPTICS
• *TENSILE PROPERTIES
• *TEST EQUIPMENT
• CALIBRATION
• ELASTIC PROPERTIES
• ERRORS
• FILAMENTS
• IRON
• MAGNESIUM
• MEASUREMENT
• METALS
• STRESSES

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE