Publication
Experimental Mechanics
Paper

Measurement of dimensional changes in thin polymer films - Flexible magnetic disks consist of a thin polymer substrate with a magnetic coating. During its lifetime, a disk will experience in-plane deformation which must be accurately measured for optimum performance

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Abstract

Instrumentation is described to measure dimensional changes of polymer films in strip and disk form. Experimental results are presented for the time-dependent radial deformation of a rotating disk due to stress relaxation, creep and environmental changes such as temperature and humidity. In addition, measurement of longitudinal extension and lateral contraction of a narrow strip under uniaxial tension is discussed. © 1978 Society for Experimental Mechanics, Inc.

Date

01 Mar 1978

Publication

Experimental Mechanics

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