3—TENSILE PROPERTIES OF TEXTILE FIBRES AT VERY HIGH RATES OF EXTENSION

Abstract

Data are presented on nylon, Terylene and cellulose acetate continuousfilament yarns at rates of strain from 0·033% per sec to 66,000% per sec, the high rates being achieved by a ballistic method. The breaking stresses of all the materials investigated are shown to be greatest at the high rates, and the work of rupture of medium-tenacity nylon appears to decrease to a minimum at about 4,000% per sec. The work of rupture of high-tenacity nylon is shown to increase with increased rate of strain, and that of the Terylene and cellulose acetate specimens is shown to remain constant.