Torsional split Hopkinson bar tests at strain rates above 10(4) s(-1)

Authors
Gilat, A Cheng, CS
Citation
A. Gilat et Cs. Cheng, Torsional split Hopkinson bar tests at strain rates above 10(4) s(-1), EXP MECH, 40(1), 2000, pp. 54-59
Citations number
9
Categorie Soggetti
Mechanical Engineering
Journal title
EXPERIMENTAL MECHANICS
ISSN journal
00144851 → ACNP
Volume
40
Issue
1
Year of publication
2000
Pages
54 - 59
Database
ISI
SICI code
0014-4851(200003)40:1<54:TSHBTA>2.0.ZU;2-M
Abstract
The torsional split Hopkinson bar is used for testing materials at strain r ates above 10(4) s(-1). This strain rate, which is an order of magnitude hi gher than is typical with this technique, is obtained by using very short s pecimens. Strain rates of 6.4 x 10(4) s(-1) have been achieved with specime ns having a gage length of 0.1524 mm. Results from tests on 1100 aluminum s how an increase in rate sensitivity as the strain rate increases.