English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

In recent research, rifle bu ll et s having velocities in the range 100 mls to 500 mls have I)('e n shot at textile yarns, a nd nash photographs of the resulting configuration s used as data for calcu lating st ress-strain be havior. VIcCrackin [J. R esearch NBt:) 66C, 317 (1962)1 has shown how a ir drag may a ffect t hese data and calculat ions. McCrackin 's theory is tested here on a 93.3 t ex nylon yarn and on 26 .1 tex an d 124.3 tex polyester yarns. The effect of yarn tex on a ir drag was found to agree with the theory. Curvature in the yarns resulting from air drag also agreed with theoret ical p red ictions. Alt hough curvature was not iceable i n all tests, the effect of air drag on yarn t ens ile st ress was negligible exce pt for t he 26.1 tex polyester yarn, in which case a small correction was necessary for accurate stress-strain calcu lat ions.

Experimental determination of air drag on a textile yarn struck transversley by a high-velocity projectile