Combined compression-shear loading at high strain rates: the split Hopkinson pressure shear bar

Peng-duo Zhao; Fang-yun Lu; Yu-liang Lin; Rong Chen; Jun-ling Li; Gui-lin Sun

doi:10.1117/12.839366

25 August 2009 Combined compression-shear loading at high strain rates: the split Hopkinson pressure shear bar

Peng-duo Zhao, Fang-yun Lu, Yu-liang Lin, Rong Chen, Jun-ling Li, Gui-lin Sun

Proceedings Volume 7375, ICEM 2008: International Conference on Experimental Mechanics 2008; 737563 (2009) https://doi.org/10.1117/12.839366
Event: International Conference on Experimental Mechanics 2008 and Seventh Asian Conference on Experimental Mechanics, 2008, Nanjing, China

Abstract

The present paper proposes an experimental technique, the split Hopkinson pressure shear bar (SHPSB) which load materials with combined compression-shear. SHPSB is mainly composed of a projectile, an incident bar and two transmitter bars. The close-to-specimen end of incident is wedge-shaped with 90 degree. In each experiment, there were two identical specimens respectively agglutinated between one side of the wedge and one of transmitter bars. The sensors were three strain gages located on the bars and two piezoelectric crystals of LiNbO₃ embedded at the end (near specimen) of transmitter bars. The numerical results validated the technique. A kind of explosive, JHL-3 was investigated by SHPSB. We find that JHL-3 is sensitive to strain rates and the shear strength is 0.75MPa at shear strainrate of 350s^-1, and corresponding compression strength is 9MPa; the shear strength is about 1.8Mpa at shear strain-rate of 700s^-1, and corresponding compression strength is about 25MPa.

Citation Download Citation

Peng-duo Zhao, Fang-yun Lu, Yu-liang Lin, Rong Chen, Jun-ling Li, and Gui-lin Sun "Combined compression-shear loading at high strain rates: the split Hopkinson pressure shear bar", Proc. SPIE 7375, ICEM 2008: International Conference on Experimental Mechanics 2008, 737563 (25 August 2009); https://doi.org/10.1117/12.839366

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available