Title

A Tensile Testing Apparatus for Short Fine Filaments with Optical-Mechanical Strain Measurement

Description

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.

Date

1961

Index Abstract

Contrails and DTIC

Photo Quality

Complete

Report Number

ASD TR 61-168

Creator

Emrick, J. E.

Gegel, H. L.

Corporate Author

Directorate of Materials and Processes

Laboratory

Directorate of Materials and Processes

Extent

14

Identifier

AD0269535

AD0269535

Access Rights

OTS

Distribution Classification

1

Contract

Laboratory Research - No Contract

DoD Project

7021

DoD Task

73653

DTIC Record Exists

Yes

Report Availability

Full text available

Date Issued

1961-09

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.

Provenance

Bombardier/Aero

Publisher

Wright-Patterson Air Force Base, OH : Aeronautical Systems Division, Air Force Systems Command, United States Air Force

Type

report

Format

1 online resource (v, 9 pages) : ill.

Subject

Mechanical Properties

Optics

Tensile Properties

Test Equipment

Calibration

Elastic Properties

Errors

Filaments

Iron

Magnesium

Measurement

Metals

Stresses

Distribution Conflict

No