Split Hopkinson bar testing apparatus

Details Split Hopkinson bar testing apparatus Split Hopkinson bar testing apparatus

1998-08-12

2000-08-29

Noori, Max

Measuring and testing

Testing by impact or shock

Specimen directly subjected to a fluid pressure pulse or wave

G01M 700

Patent

active

06109093&

ABSTRACT:
Split Hopkinson pressure bar apparatus capable of generating a compression wave or pulse in an input bar or member, said apparatus comprising an input bar or member, actuator means, a fragile or frangible component and an impactor bar or member held, in use, adjacent one end of the input bar or member and supported to resist movement in a direction away from said input bar/member when the impactor bar/member is pre-loaded in said direction by actuator means, the apparatus being such that, in use, the pre-load force can be quelled suddenly so that the impactor bar/member is released into impact or energy transfer with the input bar/member thereby transmitting a compression wave or pulse through the input bar to a specimen under test.

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patent: 5549252 (1996-08-01), Walter
Hamdan et al, Measurement Science & Technology, vol. 7, No. 7, pp. 1068-1072 (Jul. 1996).
Staab et al, Experimental Mechanics, vol. 31, No. 3, pp. 232-235 (Sep. 1991).
Lindholm, Journal of the Mechanics and Physics of Solids, vol. 12, pp. 317-335 (1964).

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