Accession Number:

AD0262897

Title:

CONCERNING STRAIN GAGE MEASUREMENT OF CREEP OF PLASTICS

Descriptive Note:

Corporate Author:

BROWN UNIV PROVIDENCE R I

Personal Author(s):

Report Date:

1961-08-01

Pagination or Media Count:

1.0

Abstract:

A means of minimizing the effect of heat dissipated in a resistance type strain gage is presented, together with an evaluation of the significance of the stiffening effect of such gages on the apparent creep strains when used on plastics. The pulsing method described for minimizing the effect of heat dissipated in resistance strain gages when attached to plastics seems to reduce the effect to negligible proportions. The presence of a resistance strain gage cemented to a rigid vinyl plastic 0.060 in. thick was calculated to stiffen the material to such an extent that the creep strain after 1000 hr. for the example chosen was 17 lower than would have resulted had the strain gage not been present. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE