Author : J. D. Lubahn
Publisher :
ISBN 13 :
Total Pages : 48 pages
Book Rating : 4.:/5 (227 download)
Book Synopsis The Mechanical Properties of Copper at High Strain Rates. Volume I. the Effect of Strain Rate on the Flow Stress of Copper by : J. D. Lubahn
Download or read book The Mechanical Properties of Copper at High Strain Rates. Volume I. the Effect of Strain Rate on the Flow Stress of Copper written by J. D. Lubahn and published by . This book was released on 1966 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental method of determining dynamic flow stress where the stress is homogeneous is developed using a pendulum bar suspension system. A small specimen is mounted on the end of one of the bars and the other bar is impacted on the free and of the specimen. For copper, the dynamic stress is 29% larger than the static stress for a strain rate of about 100/sec (or an increase in strain rate of about 5 orders of magnitude). For various tests, the increase in dynamic stress over the static value varied from 17% to 45%. This variation is comparable with the expected scatter for a typical test (plus or minus 10%) predicted from the uncertainties in measurement. (Author).