Accession Number:

AD0285180

Title:

BASIC PARAMETERS OF METAL BEHAVIOR UNDER HIGH RATE FORMING

Descriptive Note:

Interim rept. no. 2.

Corporate Author:

LITTLE (ARTHUR D) INC CAMBRIDGE MASS

Personal Author(s):

Report Date:

1962-06-01

Pagination or Media Count:

36.0

Abstract:

Using the dy amic e pa sion of a ring, the uniform elongatio to failure a igh rates of train as been measured for seven materials, by mea uring the c ge in grid pacing on one surface of fractured ring . Values obtaine using a mean initial strain rate of the order of 1000 per second re compared to t e v lues obtained on specim ns pulled to fracture at a mean strain rate of .001 per econ . The yna ic uniform elong tion to fr cture was greater tha the qua i-sta ic v lue for m t rials of low ductility and some hat less than the quasi-static value for the material of high ductili y. 9author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE